linux - Looping through the content of a file in Bash - Stack Overflow
Oct 6, 2009 · The following example uses the file's contents as arguments into two other scripts you may have written. for word in $(cat peptides.txt); do cmd_a.sh $word; cmd_b.py $word; done Or if you intend to use this like a stream editor (learn sed) …
9 Examples of for Loops in Linux Bash Scripts - How-To Geek
We describe its many variants so you can use them successfully in your own Linux scripts. All scripting and programming languages have some way of handling loops. A loop is a section of …
How to Use “for” Loop in Bash Files [9 Practical Examples]
Apr 24, 2024 · In this section, I will show you some practical examples of for-loop operations on the bash files. For loop iterates through a predefined list. If a list of files is passed through a loop, then any kind of processing can be done on each file utilising for loop.
Bash For Loop Examples - nixCraft
Jan 31, 2025 · Explains how to use a Bash for loop control flow statement on Linux / UNIX / *BSD / macOS bash shell with various programming examples.
Looping Statements | Shell Script - GeeksforGeeks
Jan 3, 2024 · Implementation of `for` Loop with `break` statement in Shell Script. First, we create a file using a text editor in Linux. In this case, we are using `vim`editor. vim for.sh. You can replace "for.sh" with the desired name. Then we make our script executable using the `chmod` command in Linux. chmod +x for.sh #/bin/bash. #Start of for loop
shell - How to loop over the lines of a file? - Unix & Linux Stack …
With the bash shell, you can get each line of a file into an array with the readarray builtin: readarray -t lines < input.txt && for line in "${lines[@]}"; do do-some-non-text-processing-you-cannot-easily-do-with-xargs "$line" || break done
Bash for loop examples - LinuxConfig
With a Bash for loop on a Linux system, it is possible to continue executing a set of instructions for a certain number of files or until a particular condition is met. Loops can be used in Bash scripting or directly from the command line.
bash - Looping through all files in a directory - Stack Overflow
How do you write a script that creates a list of every file in a directory then uses a for loop to print each file name one at a time?
Using for loops and while loops in a shell script - The Shell Scripting ...
In case you don't have access to a shell at the moment (it is very useful to have a shell to hand whilst reading this tutorial), the results of the above two scripts are: and, for the second example: Looping ... i is set to 1 Looping ... i is set to (name of first file in current directory) ... etc ...
Loop Through the Lines of a File: Bash For Loop Explained - Codefather
Feb 24, 2020 · In this article you will learn how to use the for loop in Bash and specifically to go through the lines of a file. But why would you do that? Going through the lines of a file? For instance, you might need to do that if you have exported data from an application into a file and you want to elaborate that data somehow.
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