@sdkks, you can use any fd you like (between 0 and 9, some shells allowing more, some even allowing allocating them dynamically), but it's better to avoid 0, 1 and 2 as those are special. …

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 …

Mar 16, 2018 · btw, the sh read loop will also terminate when it reaches EOF but it's not so obvious because it's reading the file one line at a time. Also BTW, relying on this is introducing …

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. …

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 …

Jan 19, 2018 · This is really clever. If the input does not end in a newline, then it must be the last/only line, so as long as it's not completely empty, we still want to process it. I suspect this …

Sep 20, 2017 · $ ./script.sh <some_file Inside the script: IFS= read -r some_data The downside with this way of doing it is that the standard input of the script now is connected to some_file. It …

To get the file name on the other side, we use LC_ALL=C IFS= read -r -d ''. Where we used read above, we used the default line delimiter of newline, but now, find is using null as the line …

Dec 10, 2021 · That $* should be "$@" - otherwise if any of the args is a quoted string containing IFS characters, bash will word split it. e.g. if the 2nd and subsequent are are cp "filename with …