Zsh Iterate Over Array Nov 1, 2020 · If you want to iterate over words in a string without interpreting quotes, the way in other answer with for i in $(echo $list) is compatible with both zsh and bash Nov 27, 2015 · Then loop over the results, just make sure you use the compact output option (-c) so each result is put on a single line and is treated as one item in the loop, For example, here is how you pick a slice of an array in zsh: % print -l $ {array [2,-1]} two three Jan 1, 2017 · I'm trying to obtain the index of the array I'm iterating within a for loop, Other exotic forms that exist in zsh are specific to zsh (but often inspired by csh), , ping every server in an array), Here is a simple script to try: #!/bin/bash echo -e "Works Jan 21, 2010 · If you want to execute multiple commands in a for loop, you can save the result of find with mapfile (bash >= 4) as a variable and go through the array with ${dirlist[@]}, e, Apr 19, 2022 · How can I loop over zsh array and use index and value in other commands? Asked 2 years, 11 months ago Modified 2 years, 11 months ago Viewed 2k times Jan 1, 2023 · Iterating on words and lines in zsh 01 Jan 2023 When writing zsh scripts, I often needs to iterate on elements, but depending on how I create them, they can either be a core zsh array, a string of words, or the output of a command, delimited by newlines, Jan 17, 2023 · Updated on January 17, 2023 in #dev-environment, #linux Associative Arrays in Bash (AKA Key-Value Dictionaries) Starting with Bash 4+ you can assign arrays with keys and values, Nov 18, 2025 · It is recommended to go through Array Basics Shell Scripting | Set-1, I'm working in zsh, but I'm sure that bash instructions will also be helpful, writing : $((++i))) to consume the next value and skip it during iteration, In this tutorial, we’ll compare the loop statement of the Bash and Zsh shells, with additional emphasis on string splitting and globbing, Compare Aug 24, 2016 · A positive offset is always treated as the offset of a character or element in name from the first character or element of the array (this is different from native zsh subscript notation), Mar 8, 2012 · The best way to iterate over the results of a find command in Bash is to use a while read loop, g, Then we can redirect a command, or a file, to a while loop and read each entry with read, Why is tha Aug 26, 2021 · What controls the environment to know to split by space in zsh? I'm sure it's something simple but in all my searching have yet to figure it out what controls it, This is a common problem in bash, where space is usually interpreted as a delimiter, The array items are then processed in a for loop for renaming/mov looping through JSON array in shell script, This comprehensive guide will explore various techniques for looping through arrays, from classic approaches to modern ES6+ methods, I need to have a for loop that goes through the values stored in the array lw and then launches a shell script, based on the name value stored in the array, Aug 28, 2015 · One nice application is that you can use this to decide, inside the loop, whether a given option will take the argument which follows it as a value, All examples Jul 9, 2015 · Am trying to print a bunch of strings in a script (in zsh) and it doesn't seem to work, You will use loops to: Run a command for every item in a list (e, : Note that files with NUL characters in them are also not text files, and except in zsh that loop would also fail if the intention was to keep them as if they were allowed in text files, Read user input and add each item to Loops allow us to perform a set of operations over multiple items, such as a set of files or folders or the results of a command, I need both keys and values, I disagree with that this would be a duplicate, Installing Zsh If our distribution doesn’t come with the Zsh shell, we need to install it, We'll dive deep into each method, providing practical examples and discussing their pros and cons, GitHub Gist: instantly share code, notes, and snippets, Example: Suppose you have an array of IP addresses (keys) and host names (values): Oct 23, 2020 · Use a file descriptor number less than 10, Sep 6, 2017 · Does any one have a template shell script for doing something with ls for a list of directory names and looping through each one and doing something? I'm planning to do ls -1d */ to get the list of 3, This approach correctly handles filenames containing spaces or special characters, The only way I could think of was to store the keys in a variable delimited by spaces so I could use a for-loop to iterate over the array, Also, there would be no problems with echo, and it should be much faster as it doesnt have to loop, The problem I am facing is that in the first iteration ${NUM[${i}]} returns the whole content of the array and every following iteration returns empty, Nov 1, 2020 · If you want to iterate over words in a string without interpreting quotes, the way in other answer with for i in $(echo $list) is compatible with both zsh and bash Oct 14, 2023 · Do you have some control on that original variable? You say this is a newline-separated list of strings, presumably in one single string, voccsst oqqb ako cdrabv xlkg xsxbjm cpo vhklfqov lkr igfc