Shell - revision history

Dank at 05:00, 9 November 2022

2022-11-09T05:00:19Z

← Older revision		Revision as of 05:00, 9 November 2022
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	==Useful functions==		==Useful functions==
	<~~source~~>		<syntaxhighlight lang="sh">
	isnumber() {		isnumber() {
	case "$1" in		case "$1" in
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	esac		esac
	}		}
	</~~source~~>		</syntaxhighlight>

Dank at 04:59, 9 November 2022

2022-11-09T04:59:29Z

← Older revision		Revision as of 04:59, 9 November 2022
Line 8:		Line 8:

	==Useful functions==		==Useful functions==
	<~~code~~>		<source>
	isnumber() {		isnumber() {
	case "$1" in		case "$1" in
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	esac		esac
	}		}
	</~~code~~>		</source>

Dank at 04:58, 9 November 2022

2022-11-09T04:58:41Z

← Older revision		Revision as of 04:58, 9 November 2022
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	* stderr to pipe, without stdout: <tt>2>&1 >/dev/null \|</tt>		* stderr to pipe, without stdout: <tt>2>&1 >/dev/null \|</tt>

			==Useful functions==
			<code>
			isnumber() {
			case "$1" in
			''\|[!0-9]) echo "not a number: $1" >&2 ; return 1 ; ;;
			*) return 0
			esac
			}
			</code>

Dank at 02:40, 30 April 2020

2020-04-30T02:40:30Z

← Older revision		Revision as of 02:40, 30 April 2020
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	To set IFS to newline, use IFS=$'\n'. This allows <tt>find</tt> output containing horizontal whitespace to be picked up and used in e.g. <tt>for</tt> loop.		To set IFS to newline, use IFS=$'\n'. This allows <tt>find</tt> output containing horizontal whitespace to be picked up and used in e.g. <tt>for</tt> loop.
	* If you can use the output with <tt>xargs</tt>, then just use <tt>find</tt>'s <tt>-print0</tt> predicate and <tt>xargs</tt>'s <tt>-0</tt> option.		* If you can use the output with <tt>xargs</tt>, then just use <tt>find</tt>'s <tt>-print0</tt> predicate and <tt>xargs</tt>'s <tt>-0</tt> option.

			==Redirects==

			* stderr to pipe, without stdout: <tt>2>&1 >/dev/null \|</tt>

Dank: Created page with "==IFS== To set IFS to newline, use IFS=$'\n'. This allows `find` output containing horizontal whitespace to be picked up and used in e.g. `for` loop. * If you ca..."

2012-02-28T08:37:10Z

Created page with "==IFS== To set IFS to newline, use IFS=$'\n'. This allows <tt>find</tt> output containing horizontal whitespace to be picked up and used in e.g. <tt>for</tt> loop. * If you ca..."

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