Skip to content
Vidar Holen edited this page Nov 3, 2022 · 1 revision

In POSIX sh, |& in place of 2>&1 | is undefined.

Problematic code:

#!/bin/sh
make |& tee ~/log

Correct code:

Either switch to bash:

#!/bin/sh
make 2>&1 | tee ~/log

Rationale:

Your script uses a shell feature not supported by the shebang. Either rewrite the script to be portable, or change the shebang to explicitly require a shell like Bash.

In this case, the non-portable shorthand |& to pipe both stdout and stderr can be easily replaced with its written out form 2>&1 | as shown.

Exceptions:

None

Related resources:

  • Help by adding links to BashFAQ, StackOverflow, man pages, POSIX, etc!

ShellCheck

Each individual ShellCheck warning has its own wiki page like SC1000. Use GitHub Wiki's "Pages" feature guerraart8 to find a specific , or see Checks.

Clone this wiki locally