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* ifs: add page --------- Co-authored-by: Jack Lin <blueskyson1401@gmail.com> Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
21 lines
555 B
Markdown
21 lines
555 B
Markdown
# IFS
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> IFS (Internal Field Separator) is a special environment variable that defines the delimiter used for word splitting in Unix shells.
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> The default value of IFS is a space, tab, and newline. The three characters serve as delimiters.
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> More information: <https://www.gnu.org/software/bash/manual/html_node/Word-Splitting.html>.
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- View the current IFS value:
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`echo "$IFS"`
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- Change the IFS value:
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`IFS="{{:}}"`
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- Reset IFS to default:
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`IFS=$' \t\n'`
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- Temporarily change the IFS value in a subshell:
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`(IFS="{{:}}"; echo "{{one:two:three}}")`
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