21 февр. 2013 г. · The return value (aka exit code) is a value in the range 0 to 255 inclusive. It's used to indicate success or failure, not to return information.

10 янв. 2011 г. · Some Bash tricks I use to set variables from commands · compatibility (posix) · kind of output (filter(s)) · number of variable to set (split or ...

29 сент. 2019 г. · I'm struggling with storing the return value (0 or 1) of my function in a variable. Whatever I try, $var ends up being empty or I run into error messages.

27 июн. 2013 г. · How can I save the result of a function in a variable in BASH? ... Why can't I store the return value of a shell function by variable assignment?

30 апр. 2015 г. · I'm trying to store a command's return code to a variable using S?, so as to use it later in the script, but S? is stored literally as S?.

14 янв. 2015 г. · I have bash script where I ask the user for some inputs, and then I want to call a C program a few times, and sum the return value.

15 июл. 2022 г. · I am trying to understand how do bash functions return values. I have created the 4 following functions, and I do not understand how it really works.

13 июл. 2010 г. · If I still want to use the same name (here: returnVariable ) I just create a buffer variable, give that to myFunction and then copy the value ...

28 апр. 2016 г. · You can check the return or use command-substitution and check the resulting variable. eg $ ip=$(dig +short google.com) $ [ -n "$ip" ] && echo "all good, ip = ...

22 февр. 2010 г. · In shell you assign to a variable without the dollar-sign: TEST=`pwd` echo $TEST that's better (and can be nested) but is not as portable as the backtics.