test. 6. jq '. Most of the popular API and data services use the JSON data format, so we'll learn how it's used to serialize interesting information, and how to use the jq to parse it at the command-line. Etc etc. $ jq --version. json file1. It is great for parsing JSON output in BASH. field_1]|@tsv' test. json so that get the json output from that https endpoint result and saves the result into a file called at. jq is a command-line tool that offers robust functionality for processing JSON data. json | jq -r '. ‘jq’ is powerful and flexible, making it ideal for complex JSON data. Your last example with . newList[] | "\(. While the jq command is a powerful tool for parsing JSON data in Linux, it’s not the only option available. [1]' submenu. Hot Network Questions Mar 15, 2019 · jq or jshon, JSON parser for shell, both of them are quite useful. This will cause cat to try to open a file with that as its filename. To fix it, ensure your JSON is correctly formatted. May 11, 2024 · In this in-depth article, we covered some of the basic capabilities that jq provides for processing and manipulating JSON via the command line. Use jq to extract specific fields from the JSON data: jq '. first, . 4. Jan 30, 2018 · None of the existing answers preserve whitespace in the values in a POSIX shell. Jan 7, 2015 · Use jq to produce a shell statement that you evaluate:. This may be what you mean by "The JSON file is stored in the ${data[0]} array", but if it means that the file is literally stored in the array, then you need to use printf to pass that data to jq. It could either be a one-line command or a bash script. This is, alas, a bit inefficient (since it means rereading the file from the top for each record to extract). Turning a JSON object into a BASH array. I am new to using jq but here is what I have gotten so far. 26 July 2015. Feb 5, 2019 · I am trying to parse the above json (data1. Is there some way to convert a string of escaped json to actual json that I can parse with a command such as this: jq '. curl-command | jq --raw-output '. Jan 14, 2024 · 1. Luckily there’s a better way using a tool called jq. Improve this question. Modified 8 years ago. I would simply try to make Bash construct a new valid JSON fragment inside the loop. Nov 4, 2017 · I want to convert JSON string into an array in bash. How to parse JSON in shell script? 1. Solution: use grep and tee to split the lines in two streams, those starting with "^{" pipe through jq and the rest just echo to terminal. authorizationToken' at. Feb 26, 2021 · - run: call some https endpoint > at. json) # Print the array. plus: mktemp sets its own permissions. value)"'. price) | add' will take an array of JSON objects as input and return the sum of their "price" fields. My goal is to append that "users" to an existing " jq 1. Jan 1, 2020 · I am writing a bash script which has a json value stored in a variable now i want to extract the values in that json using Jq. api-producing-json | jq --raw-output '. Viewed 1k times 1 I've to call a file and pass a json as parameters in this way Download jq. For example, using jq, you could pull out the ImageID from the first item of the Instances array as follows: jq '. 3. You might also wish to exploit the fact that bash strings cannot contain NUL characters. Nov 20, 2019 · json; bash; shell; parsing; jq; Share. response. I know I can get all names by. sh: Rather than trying to implement a JSON parser, you are likely better off using either a tool built for JSON parsing such as jq or a general purpose script language that has a JSON library. Per the jq docs: @sh: The input is escaped suitable for use in a command-line for a POSIX shell. One of the great things about jq is that it is written in portable C, and it has zero runtime dependencies. json my2. file1. If you want to pass data of a different JSON type, use --argjson, which will parse the string as JSON, e. Follow asked Nov 20, 2019 at 14:27. fieldName' data. json~, or prepending a dot and something more, like . Question. io/json into an associative array. ). In this comprehensive 3,000+ word guide, you‘ll learn how to install jq and leverage its full power to wrangle JSON data like a pro. Nov 27, 2015 · #!/bin/bash function processRow() { original_name=$1 changed_name=$2 # TODO } IFS=$'\n' # Each iteration of the for loop should read until we find an end-of-line for row in $(cat data. Viewed 2k times 1 I need to parse a json file , I tied jq is a lightweight and flexible command-line JSON processor akin to sed,awk,grep, and friends for JSON data. Whitespace is only needed to separate entities such as 1 and 2 Jan 9, 2022 · Often, I find I have a question about a JSON blob, and that blob is too large to inspect by just giving it a "once over. Jul 10, 2020 · space: jstream is economical with memory, but not as much as jq's streaming parser. Using jq in a bash script to get an element with a certain value pattern. I then need to do some other things in bash with the info I get. It needs to read the value next to the Content or from any other variable. 5rc2 is available. I have this command which creates JSON objects from each line of output: Jul 25, 2022 · @Preeti You can filter with select like so: jq -r 'to_entries[] | select(. JSON. Nov 12, 2022 · jqコマンドは、JSONデータから目的の情報を抽出するのに便利な機能を提供しています。ここでは、jqコマンドの基本的な利用方法を確認します。 Feb 2, 2024 · Use jq (Lightweight, Flexible Command-Line JSON Processing Tool) to Parse JSON in Bash Use grep to Parse JSON in Bash Use python3 to Parse JSON We will learn to parse the JSON data in bash using different techniques. Pipe your curl command input to a filter in jq as. Here, the “mapfile” command can take a JSON array processed by the “jq” command as its input and convert it into an array variable. Hot Network Questions Nov 2, 2018 · The JSON output returned to me after running this command . jq can accept text input as well, but by default, jq reads a stream of JSON entities (including numbers and other literals) from stdin. I’m going to use jq to filter the data returned by the GitHub repository API. Aug 25, 2016 · Just started out with Bash scripting and stumbled upon jq to work with JSON. Basic Usage. Apr 28, 2020 · The JSON I'm trying to parse has a fixed scheme but it can be formatted in any valid way and I always need to get the value of the field tag. Get it on the releases page. convert code written in python to be Feb 26, 2020 · My goal is to output a JSON object using jq on the output of a find command in bash. Feb 1, 2023 · For example, when sending a curl request to a JSON API, you may want to pipe the JSON response into jq '. |jq -s . At this point, we can invoke jwalk just like we did JSON. Oct 21, 2022 · json; parsing; jq; or ask your own Rounding up MULTIPLE COLUMNS to 2 decimal places using jq with awk in Bash/Shell-2. UNIX; Can you help make this article better? You can edit it here and send me a pull request. tool. jq 1. Thankfully, jq has built-in functionality for this! Nov 15, 2023 · We then pipe this JSON object into jq, which pretty-prints the JSON to the console. Continue reading for more detailed information and advanced usage scenarios. You can use it to slice and filter and map and transform structured data with the same ease that sed, awk, grep does for unstructured data. items[]. May 20, 2016 · My jq-fu is limited and all I did here was try a bit and find the explanation in a github issue from the jq project. Interestingly, space*time is about the same for jstream and jq's streaming parser. Nov 8, 2019 · I'm using bash script that needs to read the JSON output and parse a value from different JSON variables or strings. key == "abc") | "\(. Parse json data with bash. However, this form is more useful if you rather wanted Aug 27, 2020 · Below is the bash-script that i use to parse the json-response from my OAuth provider. jq. JSON is a lightweight format that is nearly ubiquitous for data-exchange. Currently in the above script, i get an empty string after using jq-parser. value. Remember to replace '' with your actual curl arguments. In this tutorial, you will learn how to read JSON input and combine with other utilities like curl to read and parse remote JSON objects. filter array of objects using jq from json. With your input file set up, you’ll manipulate the data using a few different filters in order to compute the values of all three attributes: creatures , totalClams , and Oct 13, 2018 · parse JSON data using jq and convert into csv. 7,654 20 20 gold badges 77 77 silver badges 127 127 Dec 24, 2009 · If the system has Node. Lightweight, free, and written in C, jq enjoys widespread community support with over 25k stars on GitHub. In it's most basic form, jq lets you query JSON documents, but it's also useful for linting and formatting minified JSON. Mar 6, 2018 · if I use the jq code to parser it like below: cat test. jq is a lightweight command line JSON processor. | map([. Parsing a JSON array with jq. json’)). [{ "name": "Georg Dec 1, 2022 · Retrieving value from JSON object in bash using JQ. json test-11 1234 test-10 1235 Here is how you can modify your script to make your curl requests per value pair. joke'. The mapfile command is a powerful tool that allows reading lines from a standard input into an array variable. Oct 1, 2019 · I tried jq and grep but doesn't work. The data I get back by default looks like this: Oct 20, 2017 · The main issue in the code is that you're calling cat with ${data[0]} as its argument. Towards the end, you will learn how to retrieve images from Oct 24, 2023 · Jq is the essential command line JSON processor for bash that allows you to slice, filter, map, and transform JSON with the same ease as traditional Unix text tools like grep, sed and awk. Sending JSON with curl request in BASH File / SHELL script: JSON_PARSING_ERROR: Unexpected character (') Jan 8, 2019 · Use jq -r to output a string "raw", without JSON formatting, and use the @sh formatter to format your results as a string for shell consumption. That’s much nicer 😎. Nov 25, 2014 · Parsing JSON with Bash jq Issue. parse(process. com/jokes/random" | jq '. json I would recommend jq a lightweight JSON aware parser for manipulating JSON content. json "New" "Open" "Close" To view a specific entry within an array, specify the index of the item within the [] operator. The JSON response contains whitespace in the form of new lines for some reason, and jq cannot handle and par Mar 9, 2018 · See for example the accepted answer at How to format a bash array as a JSON array (though this is not a completely generic solution). printf '%s\n' "${versions[@]}" The above yields: Mar 28, 2014 · The main problem is that your query is missing a closing ']', however I think it's a bit trickier to filter on EC2 instances that have those tags. How to Parse JSON Data Using Shell Script on Linux Using the jq Command? To parse JSON data using a shell script on Linux is explained in these steps: Step 1: Create a JSON File. json" I wrote a parser for it. Print as CSV/TSV $ cat file. list[]|[. In file 'a. jq -reM '""' <<<'<MAYBE_INVALID_JSON>' 1>/dev/null Which reads as: Execute jq with flags:-r to output a raw value (No processing or formatting)-e to exit with a code greater than 0 if there was an error-M do not colorize JSON Dec 12, 2017 · You've encountered a shell issue: you are missing quotation marks around $(<$1). key,. i have a curl command which return a json body and i want to pick all the values with specific key and i can not use any external tool for parsing json like jq and i dont even have python there just simple bash shell. curl '' | jq --raw-output '. I run the following: In the above image, the installation of jq is confirmed. Aug 28, 2019 · Trying to keep this in JSON all the way is pretty cumbersome. to format each line as a JSON string and then jq -s (--slurp) to create an array for the input lines after parsing them as JSON: $ printf %s\\n aa bb|jq -R . Modified 3 years, 2 months ago. json in Bash. username' Instructions to download-and-install jq available. It's inelegant as the command in the substitution must finish executing before the loop can even start running, it's inefficient as the full result of the command in the substitution must be stored in memory, and it's prone to errors since the shell must be allowed to split the output of the command on Sep 17, 2019 · awk can do all the work of tr and grep and sed, and cat is never needed when reading only a single file (its job is to concatenate multiple files into a single stream). id) \(. x and jq: jq must be installed first, but that's well worth the effort, if feasible: it enables sophisticated, robust JSON parsing. Nov 5, 2021 · jq '. spec. how to convert json data into single string with no spaces in between Feb 22, 2023 · I'm trying to parse an array, child of array, in json response returned from a curl request in bash. Nov 26, 2020 · Parse through JSON using only Bash [duplicate] (3 answers) And the main challenge is to doing it using only bash, without jq or json, if possible. [] | jq . x: IFS=$'\n' read -d '' -ra values < <(awk -F\" 'NF>=3 {print $4}' myfile. Dec 14, 2021 · I am using bash with jq to parse data returned from https://ipinfo. All you need to do is to download a single binary or use a package manager like apt and install it with a Sep 11, 2018 · I am using bash to achieve this and as its not possible to do I am running the HTML into PUP (as recommended here on StackOverflow), using PUP I am then extracting some of the schema however I am left with large json with data I dont need, I am then running sed commands to delete lines that I do not require. Linux JQ. Aug 24, 2021 · This filter is handy for just pretty-printing a JSON document. For instance, running the command jq 'map(. The example code is Mar 18, 2024 · The input function in jq reads contents from stdin or files specified to jq. Instances[0]. A simple example using the JSON string { "foo": "bar" } and pulling out the value of "foo": node -pe 'JSON. changed_name])' | jq @sh) do # Run the row through the shell interpreter to remove enclosing double-quotes stripped=$(echo Jan 11, 2017 · I have log stream where some messages are in json format. I personally find it very speedy and useful in my daily workflow. json )" Given the JSON document in your question, the call to jq will produce the string I'm using jq to form a JSON in bash from variable values. Parse a multidimensional json array using bash. Jun 19, 2023 · Pre-processing the file by simply replacing each line that starts with [with a {would make it valid JSON, or at least concatenation of valid JSONs which jq is also able to handle: Nov 15, 2023 · echo '["Apple", "Banana", "Cherry"' | jq '. Introduction. posts += [input]' blog. foo' '{ "foo": "bar" }' Output: bar Nov 13, 2023 · Using jq to parse nested JSON arrays; Use jq to interpret nested JSON in JSON; How do I set a variable to the output of a command in Bash? (this ID is about setting variables and does not use jq at all) Escape field name in jq that contains '@' and '-'? (this ID is about setting variables with a very simplistic JSON example. fields. sh or jsonv. cat foo | bar gives bar only a FIFO, whereas bar <foo gives it a real file handle for its stdin; that's an especially big deal when bar is something that can benefit from being able to seek() around in its input (f/e, to Jan 6, 2024 · Bash does not have a built-in JSON library, so we use a utility called jq to parse the JSON text. Ask Question Asked 8 years ago. data. Here’s the output: Dec 12, 2022 · It's linux, I know it's bash because jq works if I echo the value out directly from that 1st cmd JQ unable to parse JSON with embedded JSON on GIT BASH for Mar 18, 2023 · Further, let’s assume that we want to override the value of the fruit field with a user-defined value that’s available through the bash_fruit_var Bash variable: $ bash_fruit_var=Banana Aug 10, 2021 · Parsing JSON with Bash jq Issue. Jan 31, 2017 · I am writing a script that will parse a JSON file and extract out some docker container names and the servers that they are running on. I'm using jq to parse a JSON file as shown here. last] | @tsv' Stevie Wonder Michael Jackson another common temp filename is adding a tilde like test. You can use it to slice and filter and map and transform structured data with the same ease that sed, awk, grep and friends let you Jun 16, 2020 · Parsing . This only works for: JSON which does not contain nested arrays, and; JSON from trustworthy sources (else it may confuse your shell script, perhaps it may even be able to harm your system, You have been warned) Oct 19, 2020 · I am brand new to bash shell scripting and automation. sh, but a much richer feature set, is jwalk. jq is a program described as “sed for JSON data":. might be wanted, but might not BASH/Linux - How do you parse JSON with jq when array doesn't have any keys? 0. which works! Jan 3, 2016 · @UncleCodeMonkey, that sounds like you really do have an extra empty string in your array. Convert types from strings to ints in newline delimited JSON file, handling null. The hint is that the space makes a difference. json | jq '. title' and get this output: "Hello World"? Oct 22, 2017 · JSON with jq into bash array / loop through. jq-1. json_val={"code":"lyz1To6ZTWClDHSiaeXyxg","redirec You can also use jq -R . I am trying to create a relatively simple script which parses a JSON file and prints some PHP from the data that was parsed. Unfortunately, I don't think that works. date)"' This way the filter is independent of the dynamic numbers in the nodes (243, 244). I wanna append the results into a yaml file, but I dont get it working. Using bash JQ parser, Im trying parse the fields from a cURL JSON response. kubectl get pods -o json | jq '. Is there a way of achieving it without using some temp Oct 21, 2013 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Nov 22, 2023 · echo $(cat config. name' "Google" How can I pipe this into another command to remove the ""? so I get $ cat json. To parse the JSON I would like to use jq. 2. Struggling with parsing JSON with jq. Therefore, we can feed the post. Jul 16, 2018 · Bash doesn’t understand JSON out of the box, and using the typical text manipulation tools like grep, sed, or awk, gets difficult. Lukas Lukas. Let say there is a json file data. I want to pipe the json messages through jq, and just echo the rest. awk, JSON parser awk script. Jul 18, 2018 · I am using Azure CLI 2. For example, using a bash shell with mapfile (aka readarray): mapfile -t ary < <(< json_file jq '. How to Your best bet is to use a JSON CLI such as jq: by bash script? Using a dedicated JSON tool, like xidel, would be a better idea than to use pure Bash functions. name' | some_other_command Google What some_other_command can I use? Aug 5, 2016 · jq manual; jq is sed for JSON; bash that JSON (jq) Parsing JSON with jq; Tags. json' has 4 'hash' values and 'b. The JSON string is passed to the bash script as an argument (it doesn't exist in a file). Parse JSON string within JSON and other fields. You can find their tutorials here. item2]) )"' file. json post. – fedorqui Commented May 20, 2016 at 22:40 Jun 24, 2021 · Parse JSON and iterate objects using jq. "sub-example"[]. 5 released, including new datetime, math, and regexp functions, try/catch syntax, array and object destructuring, a streaming parser, and a module system. Poshi's solution is solid. Ask Question Asked 2 years, 4 months ago. Nov 3, 2014 · I have a Bash script which gets data in JSON, I want to be able to convert the JSON into an accessible structure - array / list / or other model which would be easy to parse the nested data. and the ksh93v- beta release even had experimental support With the --stream option jq can parse input texts in a streaming fashion, allowing jq programs to start processing large JSON texts immediately rather than after the parse completes. AssetID' Jul 12, 2024 · # Outputs the entire JSON jq '. , Apr 29, 2020 · Using JQ I would like to take a complex JSON object that includes JSON embedded as strings and then turn it all into a valid string I can easily embed in other JSON objects. original_name, . argv[1]). Usage examples: $ jq --color-output . Access nested data using dot notation: Dec 29, 2018 · I would recommend you to restart you windows and then open your powershell / windows command line / git bash cli and run below command to check the jq is properly installed or not. Oct 27, 2015 · JSON and thus jq do not support comments (in the usual sense) in JSON input. If you have a single JSON text that is 1GB in size, streaming it will allow you to process it much more quickly. 0. x: readarray -t values < <(awk -F\" 'NF>=3 {print $4}' myfile. Jun 3, 2020 · In this article we see how to use the jq utility to parse and manipulate json-formatted data from the Linux command jp is one JSON parsing CLI alternative to jq based on the Python library jmespath (a pretty solid tool to depend on, it's notably the default JSON parsing library for the AWS cli). json Dec 28, 2017 · Assuming your root node name is newList as you have in the question given, to get the id and created date, you can do string interpolation with jq. Shell scripts like JSON. time: jstream runs slightly slower than jq's regular parser but about 4 times faster than jq's streaming parser. json file to jq: $ jq '. 3 I’m going to ignore the pretty-printing and jump right into using jq to transform JSON documents. How to parse JSON with keys from a BASH variable using jq? 0. Dec 15, 2022 · Parse json data with bash. Let’s explore some of these alternatives. ‘json. In most cases, the API I Nov 27, 2017 · Using jq. Using JQ to Select Elements. All you need to do is to download a single binary or use a package manager like apt and install it with a I am using jq and want to get the "name" elements of the objects where 'location' is 'Stockholm'. The code used is. jq is a command-line tool for parsing JSON. json (which is the json text, above). Mar 18, 2024 · Another script with functionality similar to JSON. In this tutorial I'm focusing only on jq, which is quite powerful JSON parser for Nov 15, 2018 · I read data from a json file with jq. ' data. json - run: jq '. Sometimes, the output from a jq command might not be what you expected. depending on the 'repo' I need to be able to parse from the properties array all 'key' & 'values' and associated with the repository. []. . this way, the move operation doesn't potentially cross filesystems which would result in a non-atomic copy&delete operation. There are other tools and methods you can use to parse JSON data from the command line. division') the result will list all file names under current folder! like: my1. Yq: retrieve object keys names. The JSON data file is created under the name “names. Here's the sample output. Similarly, the inputs function can read multiple files. Unfortunately i can't use jq because it can't be installed on production servers. However, if you're looking for the most compact to do this, no need to save the response as a variable if the only thing your're going to do with it is extract other variables from it on a one time basis. version' file. eval "$( jq -r '@sh "arr=( \([. jq is licensed under the MIT license. Iterate over JSON array using bash jq. This script reports whether the two entities are equivalent in the sense that their normalized values are equal, where normalization of all component arrays is achieved by recursively Aug 30, 2016 · Rather than populating separate shell variables (which would require knowing in advance how many values there are), consider populating a shell array. It is great for parsing JSON output in BASH. json' has 5 'hash' values. " Enter, jq. question mark for null safety; support for one level of nested arrays; jsn_ præfix for namespacing the resulting variables to avoid them overwriting your normal variables Aug 21, 2019 · My scenario is: i am writing a script which will going to run on the server. See Also. Let's say I have the following JSON blob: #!/bin/bash JQ=/usr/local/bin/jq BN=$(basename $0) function help { cat <<EOF Syntax: $0 file1 file2 The two files are assumed each to contain one JSON entity. Jan 30, 2023 · 在 Bash 中使用 jq(轻量级、灵活的命令行 JSON 处理工具)解析 JSON jq 是一个小型跨平台解决方案,用于以更短、更简单、更轻松的方式管理 JSON 数据。 你可以从 这里 下载 jq 。 The jq command-line tool is a lightweight and flexible command-line JSON processor. jq can simplify the above bash to this: curl -s "http://api. The following command displays the second item of the array, which is item [1]. json” using the nano editor. How to Iterate over an array of objets using jq. That said, as long as a newline is not a valid character in any object, you can still output each object on a separate line. The jq command-line tool is is a lightweight and flexible command-line JSON processor. You might wish to convert numeric strings to JSON numbers, e. "name" "Jack" "Walt" "Donald" But I can't figure out how to print only certain objects, given the value of a sub key (here: "location" : "Stockholm"). Again, we can either clone or directly download it as an archive. Jul 29, 2014 · The easiest way to do this is with two instances of jq-- one listing hostnames, and another (inside the loop) extracting individual entries. JSON with jq into bash array / loop through. readarray -t versions < <(jq -r '. However, I wasn't sure how to actually do this with escaped characters. sh to parse JSON in bash, zsh or dash shell. Python modules like json. js installed, it's possible to use the -p print and -e evaluate script flags with JSON. employees[2]. Try that on an input_file that has three groups of AvailabilityZones, one like what you used, plus one with just us-east-1b and us-east-1c, and then a third with only us-east-1d. json) using jq, but I am unable to access the metadata object. txt | jq '. Modified 3 years, 1 month ago. Further thoughts. You now have jq up and running. May 28, 2021 · Nested Json parsing using jq in bash. It's very simple to use and it works great! It can handle very large JSON structures, including streams. 1. Generating JSON. Mar 20, 2019 · It surprise me that We need other to parse JSON (isnt just require(‘json. Ask Question Asked 4 years, 2 months ago. Aug 19, 2014 · To add on top of aaiobe’s answer, here’s a few things to make it safer / more flexible to use:. Dec 9, 2008 · You can use: jq. By the way, when there are several moving parts (as there are here), it would be wise to try to isolate the problem before resorting to stackoverflow. To read JSON data from a file, you can use the cat command: cat data. [0]. $ cat json | jq '. The following line will use jq to take each key:value of some JSON and export them as environment variables, properly escaping whitespace and special characters. Jul 14, 2016 · If you really cannot use a proper JSON parser such as jq [1], try an awk-based solution: Bash 4. text | @json | . Viewed 5k times Parsing JSON with jq to get firstname in below Jul 20, 2016 · Bash Jq parse json string. The jq FAQ lists a number of tools that can be used to remove comments, including jsonlint, json5, and any-json. example. key)=\(. json) Bash 3. json) has so many things wrong with it. Dec 4, 2023 · Each method of parsing JSON in Bash has its strengths and weaknesses. json The objects in my JSON have properties about images. name') You could alternatively use a shell while loop. How to dynamically parse a JSON object with shell Jan 27, 2015 · In addition to what others have suggested, I think that two options are worth mentioning. t' t for a Oct 26, 2017 · To validate a JSON file and still get the errors in STDERR output using jq you can use the following bash one-liner. Characterization of the test file Aug 24, 2020 · I'm trying to pull a list of product categories from an API using jq and some nested for-loops. underscore-cli, Node. First, we looked at some of the essential filters jq offers and how they can be used as the building blocks for more complex operations. Motivation: you want to parse JSON string - you want to escape a JSON object that's wrapped with quotes and represented as a String buffer, and convert it to a valid JSON object. However, the results for string values contain the "double-quotes" as expected, as shown below: $ cat json. 5rc1 is available. We will use a fake JSON server for the examples. icndb. The binaries should just run, but on macOS and Linux you may need to make them executable first using chmod +x jq. Python’s JSON Module Apr 7, 2012 · jq can escape strings for use in shell scripts or JSON documents. containers[]. Or even a Useless Use of Cat like cat config. create. cat json | jq . password, . How can I do this properl Apr 7, 2022 · Retrieving value from JSON object in bash using JQ. g. It's written in portable C and has zero runtime dependencies, allowing you to easily slice, filter, map, and transform structured data. value' submenu. 12. json | less -R $ command_with_json_output | jq . Jan 1, 2022 · It's generally a good idea to avoid looping over the result of a command substitution. The json messages are on a single line. Oct 26, 2017 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Sep 14, 2020 · The jq command from @Kev in comment will extract the values you want, each pair per line, like this: > jq -r '. It can have any number of fields, the structure is not fixed. See installation options on the download page, and the release notes for details. using the jq idiom: (tonumber? // . json # Extracts a specific field jq '. Once in a while, I’ll find myself needing to write a Bash script that uses curl to retrieve some data. json Nov 15, 2021 · As you can see, the response gave me escaped JSON with \ in front of every " character for the actual contents of the secret. Using the “mapfile” Command. Jun 18, 2018 · I am retrieving secrets I have stored in AWS secrets manager with the AWS cli like this: aws secretsmanager get-secret-value --secret-id secrets Which returns arn:aws:secretsmanager<ID>:se JQ - create JSON array using bash array with space. parse to pull out any value that is needed. Here is a crude way to do it: Transform JSON into bash variables to eval them. env' on my kuberntes cluster is this To convert your JSON to a bash array, with help of jq: $ readarray -t arr < <(jq '. division' it will work well and give a correct result: Marketing * test but I use $(), the bad thing will happen! echo $(cat test. If you can't install a json parser then assuming your strings cannot contain double quotes or newlines, every record is on a single line and that every tag and value are double-quote-enclosed strings as in your posted sample input, this will work using any awk in any shell on every UNIX box: Mar 17, 2024 · 2. tool’ is simpler and comes pre-installed with Python, making it a good choice for basic JSON parsing and pretty-printing. json, keeping the file in the same directory. Prebuilt binaries are available for Linux, macOS and Windows. I have to pull the category ID first, then I'm able to pull product details. This is the code in my bash shell script that does that: jq . jq takes the file names of JSON documents as arguments; use that. jq is written in C and has no runtime dependencies, so it should be possible to build it for nearly any platform. json | jq for example purposes is fine if you intend to replace the cat part with something more complex like a curl request or other command that outputs JSON but don't combine it with echo. 0 in a bash script and I am trying to retrieve my keys for a storage account. Apr 29, 2019 · I need to parse out specific information from the following JSON example bellow using jq. 7-dirty. ImageId' test. jq --version. value' file) $ printf '%s\n' "${arr[@]}" "1" "3" "4" Parsing the Data Into a Oct 30, 2017 · Download and install jq which is like sed for JSON data. The notation is zero-based, so [0] refers to the first item of the array. js and javascript based. For example: For example: Apr 25, 2022 · The -r option should not be used if the output will be fed into another JSON parser; only the last jq in the pipeline should use it – otherwise you risk feeding non-JSON data into the second jq instance. While the library in question seems to be available on Debian , the jp CLI interface however doesn't seem to be. json Jun 8, 2021 · We’ve written before about how you can use jq to parse JSON on the command line, but in this post I want to talk about using jq to create JSON data from scratch or make changes to existing data. # Extract the version numbers and read them into a Bash array. Official installation documentation guide. Ask Question Asked 3 years, 2 months ago. parsing/extract json data with jq. Feb 27, 2024 · I'm making calls to Azure DevOps API, and parsing the response with jq in a bash script. Dump Json response to a bash variable. Because I wanted to use this programmatically, I needed to parse the JSON further with jq. ' to pretty print it. json test. json) This stores all property values in Bash array ${values[@]}, which you can inspect with declare Nov 28, 2018 · As Benjamin already suggested, only retrieving the json is a better way to go. This is just a basic way to use jq for JSON processing, but there’s much more to learn about parsing and manipulating JSON data with jq. I am quite new to shell programming. And it doesn't matter whether you have to work with well-engineered, elegant JSON, or the stuff nightmares are made of. I need to put the data in a variable and store key1 in a ENV variable. Linux and Unix cat command tutorial with examples Aug 4, 2016 Tutorial on using cat, a UNIX and Linux command for concatenating files and printing to standard output. json. Nov 15, 2023 · Exploring Alternatives: Other Tools for Parsing JSON. json How to Parse JSON Data in Bash. tx' | jq -r '. 01 January 2015. I will eventually use the metadata object to insert into a database as a string. t seems correct and works with jq 1. if installed it provide the jq version. Based on the assumption that my results will be similar to "a. I realize that the @json function will take json and output a json escaped string, so there must be another way, but @text doesn't seem to do anything. For example, lets say I have this json object: Apr 25, 2020 · Introduction. Next, I then run the jq command, extracting the authorizationToken value. Unexpected Output. test. Parse JSON data in variables using JQ. []' # Output: # parse error: Unfinished JSON term at EOF at line 2, column 0 The issue here is the missing closing bracket in the array. users[] | [. I need to transform a JSON string like below to a table for output in the terminal. 7. It is versatile, allowing users to slice, filter, map, and transform structured data with ease The problem is that jq is still just outputting lines of text; you can't necessarily preserve each array element as a single unit. The --is a single argument that tells jq "don't process anything else after this point as an option, even if it starts with a hyphen". Feb 14, 2020 · With jq, we can easily parse JSON in the Bash shell, or even convert XML to JSON. Jul 19, 2018 · Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand Using Bash 4. afsbrwof sfjr qozz vunxx bfrlcnt bhnsjcq dcxage yyhzmn bkf faubwwv