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?

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...

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 …

Mar 15, 2017 · Or more generally, contains a space. cat${IFS}file.txt The default value of IFS is space, tab, newline. All of these characters are whitespace. If you need a single space, you can use …

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 …

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?

The IFS= read -r line sets the environment variable IFS (to an empty value) specifically for the execution of read. This is an instance of the general simple command syntax: a (possibly empty) sequence of …

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 ...

Aug 16, 2020 · changing IFS temporarily before a for loop [duplicate] Ask Question Asked 5 years, 2 months ago Modified 4 years, 7 months ago

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...