Skip to content

SC2172

Jump to bottom
koalaman edited this page Nov 1, 2015 · 1 revision

ShellCheck

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

Clone this wiki locally

Trapping signals by number is not well defined. Prefer signal names.

Problematic code:

trap myfunc 28

Correct code:

trap myfunc WINCH

Rationale:

Signal numbers can vary between platforms. Prefer signal names, which are fixed.

Signal numbers 1, 2, 3, 6, 9, 14 and 15 are specified as parts of the optional POSIX XSI and ShellCheck will not warn about these.

Exceptions:

None.