
What is the meaning of IFS=$'\\n' in bash scripting?
Feb 15, 2015 · At the beginning of a bash shell script is the following line: IFS=$'\\n' What is the meaning behind this collection of symbols?
shell - Understanding IFS - Unix & Linux Stack Exchange
The following few threads on this site and StackOverflow were helpful for understanding how IFS works: What is IFS in context of for looping? How to loop over the lines of a file Bash, read line by...
What is the "IFS" variable? - Unix & Linux Stack Exchange
Feb 20, 2023 · I was reading this Q&A: How to loop over the lines of a file? What is the IFS variable? And what is its usage in the context of for-loops?
understanding the default value of IFS - Unix & Linux Stack Exchange
Here if the expansion contains any IFS characters, then it split into different 'words' before the command is processed. Effectively this means that these characters split the substituted text into different …
Understanding "IFS= read -r line" - Unix & Linux Stack Exchange
Jun 12, 2015 · Using IFS= LC_ALL=C read -r line works around it there. Using var=value cmd syntax makes sure IFS / LC_ALL are only set differently for the duration of that cmd command. History note …
For loop over lines -- how to set IFS only for one `for` statement?
Jul 9, 2021 · Here is an example of behavior I want to achieve: Suppose I have a list of lines, each line containing space separated values: lines='John Smith James Johnson' And I want to loop over lines …
bash - Can IFS (Internal Field Separator) function as a single ...
Parsing an array using IFS with non-whites space values creates empty elements. Even using tr -s to shrink multiple delims to a single delim isn't enough. An example may explain the issue more clea...
How to temporarily save and restore the IFS variable properly?
Mar 19, 2021 · How do I correctly run a few commands with an altered value of the IFS variable (to change the way field splitting works and how "$*" is handled), and then restore the …
Setting IFS for a single statement - Unix & Linux Stack Exchange
I know that a custom IFS value can be set for the scope of a single command/built-in. Is there a way to set a custom IFS value for a single statement?? Apparently not, since based on the below the ...
shell script - Using regex with IFS variable to split Bash string ...
Jun 29, 2020 · I am trying to split a string into an array by any character that is not alphanumeric. Can assign a regex pattern to the IFS variable to accomplish this? I have tried it like so: …