Sed - Revision history

Pew: Undo revision 1837 by imported>Pew (talk)

2019-01-04T02:37:16Z

Undo revision 1837 by [[Special:Contributions/imported>Pew|imported>Pew]] ([[User talk:imported>Pew|talk]])

imported>Pew: Replaced content with "Category:Pending deletion"

2018-01-04T06:47:38Z

Replaced content with "Category:Pending deletion"

imported>Pew at 06:40, 3 January 2018

2018-01-03T06:40:48Z

imported>Echarlie at 21:07, 2 March 2016

2016-03-02T21:07:56Z

imported>Cov at 22:47, 8 January 2010

2010-01-08T22:47:42Z

imported>Cov: /* Substitution */

2009-12-24T02:53:39Z

‎Substitution

imported>Cov: Created page with ''''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities. =Uses= ==Substitution== The most popular comma…'

2009-12-24T02:52:40Z

Created page with ''''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities. =Uses= ==Substitution== The most popular comma…'

New page

'''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities.

=Uses=
==Substitution==
The most popular command of sed is the <code>s</code> command for substitution. To use the command, type an s followed by a delimiting character followed by a regular expression to find followed by the delimiting character followed by an expression with which to replace what was found followed by a final delimiting character. (<code>/</code> is the conventional delimiting character and potentially required by some versions of sed. GNU sed can take any character however, and when URLs or paths are involved, <code>%</code> is often a handy choice to lessen the amount of escaping required.)
<pre>
$ echo "Never let schooling interfere with your education." | sed 's/schooling/video games/'
Never let video games interfere with your education.
</pre>

Groups can be useful in the replacement portion. Use the <code>-r</code> flag if you don't want to escape the initial grouping parenthesis. The <code>-e</code> flag allows for multiple expressions to be evaluated.
<pre>
$ echo "Never let schooling interfere with your education." | sed -re 's/(schooling)/costly \1/' -e 's/(education)/invaluable \1/'
Never let costly schooling interfere with your invaluable education.
</pre>

=Examples=
* [[Reencoding MediaWiki pages#Script]]
* [[Central Authentication System#Scripted Login]]

[[Category:*nix commandline software]]

← Older revision		Revision as of 06:47, 4 January 2018
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−	~~TODO: Easily available on google~~
−
−	~~'''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities.~~
−
−	~~=Uses=~~
−	~~==Substitution==~~
−	The most popular command of sed is the <code>s</code> command for substitution. To use the command, type an s, followed by a delimiting character, followed by a regular expression to look for, followed by the delimiting character, followed by an expression with which to replace what was found, followed by a final delimiting character. (<code>/</code> is the conventional delimiting character and potentially required by some versions of sed. GNU sed can take any character however, and when URLs or paths are involved, <code>%</code> is often a handy choice to lessen the amount of escaping required.)
−	~~<pre>~~
−	~~$ echo "Never let schooling interfere with your education." \| sed 's/schooling/video games/'~~
−	~~Never let video games interfere with your education.~~
−	~~</pre>~~
−
−	Groups can be useful in the replacement portion. Use the <code>-r</code> flag if you don't want to escape the initial grouping parenthesis. The <code>-e</code> flag allows for multiple expressions to be evaluated.
−	~~<pre>~~
−	~~$ echo "Never let schooling interfere with your education." \| sed -re 's/(schooling)/costly \1/' -e 's/(education)/invaluable \1/'~~
−	~~Never let costly schooling interfere with your invaluable education.~~
−	~~</pre>~~
−
−	~~=Examples=~~
−	* [[Reencoding MediaWiki pages#Script]]
−	* [[Central Authentication System#Scripted Login]]
−
−	~~[[Category:Commandline *nix]]~~
	[[Category:Pending deletion]]		[[Category:Pending deletion]]

← Older revision		Revision as of 06:40, 3 January 2018
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		+	TODO: Easily available on google
		+
	'''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities.		'''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities.

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	[[Category:Commandline *nix]]		[[Category:Commandline *nix]]
		+	[[Category:Pending deletion]]

← Older revision		Revision as of 21:07, 2 March 2016
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	* [[Central Authentication System#Scripted Login]]		* [[Central Authentication System#Scripted Login]]

−	[[Category:Commandline *nix ~~software~~]]	+	[[Category:Commandline *nix]]

← Older revision		Revision as of 22:47, 8 January 2010
Line 19:		Line 19:
	* [[Central Authentication System#Scripted Login]]		* [[Central Authentication System#Scripted Login]]

−	[[Category:*nix ~~commandline~~ software]]	+	[[Category:Commandline *nix software]]

← Older revision		Revision as of 02:37, 4 January 2019
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−	[[Category:~~Pending deletion~~]]	+	'''Sed''' is an extremely handy commandline *nix tool. Refer to its manual page for a more extensive overview of its capabilities.
		+
		+	=Uses=
		+	==Substitution==
		+	The most popular command of sed is the <code>s</code> command for substitution. To use the command, type an s, followed by a delimiting character, followed by a regular expression to look for, followed by the delimiting character, followed by an expression with which to replace what was found, followed by a final delimiting character. (<code>/</code> is the conventional delimiting character and potentially required by some versions of sed. GNU sed can take any character however, and when URLs or paths are involved, <code>%</code> is often a handy choice to lessen the amount of escaping required.)
		+	<pre>
		+	$ echo "Never let schooling interfere with your education." \| sed 's/schooling/video games/'
		+	Never let video games interfere with your education.
		+	</pre>
		+
		+	Groups can be useful in the replacement portion. Use the <code>-r</code> flag if you don't want to escape the initial grouping parenthesis. The <code>-e</code> flag allows for multiple expressions to be evaluated.
		+	<pre>
		+	$ echo "Never let schooling interfere with your education." \| sed -re 's/(schooling)/costly \1/' -e 's/(education)/invaluable \1/'
		+	Never let costly schooling interfere with your invaluable education.
		+	</pre>
		+
		+	=Examples=
		+	* [[Reencoding MediaWiki pages#Script]]
		+	* [[Central Authentication System#Scripted Login]]
		+
		+	[[Category:Software]]
		+	[[Category:Howtos]]

@@ Line 3: / Line 3: @@
 =Uses=
 ==Substitution==
-The most popular command of sed is the <code>s</code> command for substitution. To use the command, type an s followed by a delimiting character followed by a regular expression to find followed by the delimiting character followed by an expression with which to replace what was found followed by a final delimiting character. (<code>/</code> is the conventional delimiting character and potentially required by some versions of sed. GNU sed can take any character however, and when URLs or paths are involved, <code>%</code> is often a handy choice to lessen the amount of escaping required.)
+The most popular command of sed is the <code>s</code> command for substitution. To use the command, type an s, followed by a delimiting character, followed by a regular expression to look for, followed by the delimiting character, followed by an expression with which to replace what was found, followed by a final delimiting character. (<code>/</code> is the conventional delimiting character and potentially required by some versions of sed. GNU sed can take any character however, and when URLs or paths are involved, <code>%</code> is often a handy choice to lessen the amount of escaping required.)
 <pre>
 $ echo "Never let schooling interfere with your education." | sed 's/schooling/video games/'