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SC2122

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Eisuke Kawashima edited this page Jul 29, 2025 · 7 revisions

>= is not a valid operator. Use ! a < b instead.

Problematic code:

[[ a >= b ]]

Correct code:

[[ ! a < b ]]

Rationale:

The operators <= and >= are not supported by Bourne shells. Instead of "less than or equal", rewrite as "not greater than".

Exceptions

None

cmd <<< $var # Requires quoting on Bash 3 (but not 4+) : ${var=default} # Should be quoted to avoid DoS when var='/////'debug="" $1 == "--trace-commands" && debug="yes" bash ${debug:+"-x"} scriptdebug="" $1 == "--trace-commands" && debug="-x" bash $debug scriptmake_with_flags() { [ "$debug" = "yes" ] && set -- -d "$@" make -j 5 -B "$@" } make_with_flags fileoptions=(-j 5 -B) # ksh88: set -A options -- -j 5 -B $debug == "yes" && options=("${options[@]}" -d) make "${options[@]}" fil

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