There are two primary ways that I typically read files into bash arrays: Method 1: A while loop. I want all the IP address strings to be converted into an array. Note: The code uses the first row of your CSV data to determine the keys in the associative array. Associative arrays can be created in the same way: the only thing we need to change is the option used: instead of lowercase -a we must use the -A option of the declare command: $ declare -A my_array This, as already said, it's the only way to create associative arrays in bash. The Solcast API delivers forecast results in CSV format along with others (JSON/XML), but I wanted to load the data into a bash array and convert it to my localized time by parsing out the ending times (period_end) and taking on of the radiation values (GHI).. /** * Convert a comma separated file into an associated array. You can also simply read the entire line into the array, then strip the first field. This article has been viewed 873 times. 1) Copy/paste or upload your Excel data (CSV or TSV) to convert it to JSON. It is straight forward to extract the relevant data from each array entry into a shorter flat array and convert that into CSV with @csv in jq: The issue is not really that the JSON that you show is an array, but that each element of the array (of which you only have one) is a fairly complex structure. How to convert file of strings separated by a new line to array. Ask Question Asked 1 year, ... How do I achieve this with just bash or shell execution? In celebration of daylight savings time and all the misery it causes with timezones. GitHub Gist: instantly share code, notes, and snippets. Convert String to an Array using shell scripting in JSON file. 3) Convert and copy/paste back to … 2) Set up options: parse numbers, transpose your data, or output an object instead of an array. This is the bash split string example using tr (translate) command: * The first row should contain the array keys. Convert CSV to JSON using bash. bash shell variable array. Posted - Mon, Jan 20, 2020 11:13 AM. Filed Under: Scripts We can combine read with IFS (Internal Field Separator) to … Execute the script. Here’s the output of the above script: Ubuntu Linux Mint Debian Arch Fedora Method 2: Split string using tr command in Bash. ... create array $( ) syntax. If you want to convert comma separated values into an associated array, then use the following code. If you’ve got a string of items in bash which are delimited by a common character (comma, space, tab, etc) you can split that into an array quite easily. Method 3: Bash split string into array using delimiter. Now the myarray contains 3 elements so bash split string into array was successful # /tmp/split-string.sh My array: string1 string2 string3 Number of elements in the array: 3 . 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