I ran into this same issue and the bash options of set -o pipefail and ${PIPESTATUS[0]} both failed in the dash shell (/bin/sh) on the docker image I’m using. I’d rather not modify the image or install another package, but the good news is that using a named pipe worked perfectly for me =) mkfifo … Read more
dash is a very strict POSIX shell, if it work in dash it is almost certain it would work in other POSIX shell. Try: if [ “$var” = “string” ] then some_command fi
;; is only used in case constructs, to indicate the end of an alternative. (It’s present where you have break in C.) case $answer in yes) echo ‘yay!’;; no) echo ‘boo!’;; esac Syntactically, ; and & both mark the end of a command. A newline is equivalent to ;, in a first approximation. The difference … Read more