5 SC2141

Joachim Ansorg edited this page 2021-11-12 19:38:21 +01:00

Table of Contents

• Did you mean IFS=$'\t' ?
• Problematic code:
• Correct code:
• Rationale:
• Exceptions
• Related resources

Did you mean IFS=$'\t' ?

Problematic code:

IFS="\t"

Correct code:

IFS=$'\t'

or POSIX:

IFS="$(printf '\t')"

Rationale:

IFS="\t" splits on backslash and the letter "t". IFS=$'\t' splits on tab.

Exceptions

It's extremely rare to want to split on the letter "n" or "t", rather than linefeed or tab.

Related resources

See https://github.com/koalaman/shellcheck/wiki/SC1012

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