Sed - Revision history

Admin at 18:12, 27 June 2025

2025-06-27T18:12:39Z

← Older revision		Revision as of 18:12, 27 June 2025
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	<li>[http://man.he.net/?topic=sed&section=all sed man page]</li>		<li>[http://man.he.net/?topic=sed&section=all sed man page]</li>
	<li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li>		<li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li>
	<li>[https://pro.tecmint.com/blog/sed-command-examples/]</li>		<li>https://pro.tecmint.com/blog/sed-command-examples/</li>
	</ol>		</ol>

2025-06-27T18:10:49Z

← Older revision		Revision as of 18:10, 27 June 2025
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	<li>[http://man.he.net/?topic=sed&section=all sed man page]</li>		<li>[http://man.he.net/?topic=sed&section=all sed man page]</li>
	<li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li>		<li>[http://www.grymoire.com/Unix/Sed.html Grymoire sed tutorial]</li>
			<li>[https://pro.tecmint.com/blog/sed-command-examples/]</li>
	</ol>		</ol>

2025-06-27T18:08:48Z

@@ Line 86: / Line 86: @@
 == Substitution ==
 <code>s/..../..../</code> Substitute. Changes the 1st pattern to the second pattern.<br />
 '''Example:'''<br />
 <code>sed -i 's/red/blue/' file.txt</code> Changes "red" to "blue" in file.txt <br />
-&nbsp; &nbsp; <code>cat file.txt | sed 's/one/two/'</code> Changes "one" to "two" in file.txt
+The search pattern is on the left, and the replacement string is on the right.<br />
-The search pattern is on the left, and the replacement string is on the right. By default, sed replaces the first occurrence per line.
@@ Line 102: / Line 137: @@
 <code>sed -i '140,144d' /etc/named.conf</code> deletes the range of line numbers specified (140 through 144, in this case)
 == References ==

2025-06-27T17:36:46Z

← Older revision		Revision as of 17:36, 27 June 2025
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	<code>t label</code> Test		<code>t label</code> Test

	<code>w filename Write Filename		<code>w filename</code> Write Filename

	<code>x eXchange		<code>x</code> eXchange

	<code>y/..../..../</code> - Transform		<code>y/..../..../</code> - Transform

2017-03-02T04:10:55Z

Deleting

← Older revision		Revision as of 04:10, 2 March 2017
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	== Deleting ==		== Deleting ==

	<code>sed -i 140,144d /etc/named.conf</code> deletes the range of line numbers specified (140 through 144, in this case)		<code>sed -i '140,144d' /etc/named.conf</code> deletes the range of line numbers specified (140 through 144, in this case)


	== References ==		== References ==

2017-03-02T04:10:07Z

@@ Line 42: / Line 42: @@
 <code>x eXchange
-<code>y/..../..../</code> Transform
+<code>y/..../..../</code> - Transform
+<code>s/..../..../</code> - Substitute
@@ Line 81: / Line 71: @@
 <code>sed 's/[a-z]*/(&)/' <old.txt >new.txt </code>
@@ Line 94: / Line 83: @@
 <code> -i </code> Inline editing.
 == References ==

2017-03-02T04:03:36Z

← Older revision		Revision as of 04:03, 2 March 2017
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	<code>r <i>filename</i></code> Read File		<code>r <i>filename</i></code> Read File

	~~'''Substitution:'''~~ <br />		<code>t label</code> Test
	<code>~~s/..../..../~~</code> ~~Substitute. Changes the 1st pattern to the second pattern.<br />~~
			<code>w filename Write Filename

			<code>x eXchange

	~~'''Example:'''~~ <code>~~sed 's~~/~~red~~/~~blue~~/~~' < file.txt~~</code> ~~Changes "red" to "blue" in file.txt <br />~~		<code>y/..../..../</code> Transform

	~~    <code>cat file.txt \| sed 's/one/two/'</code> Changes "one" to "two" in file.txt~~

	~~The search pattern is on the left, and the replacement string is on the right. By default, sed replaces the first occurrence per line.~~		== Substitution ==

			<code>s/..../..../</code> Substitute. Changes the 1st pattern to the second pattern.<br />

	<code>~~t label~~</code> ~~Test~~		'''Example:'''<br />
			<code>sed 's/red/blue/' < file.txt</code> Changes "red" to "blue" in file.txt <br />

	<code>~~w filename Write Filename~~		<code>cat file.txt \| sed 's/one/two/'</code> Changes "one" to "two" in file.txt

	~~<code>x eXchange~~		The search pattern is on the left, and the replacement string is on the right. By default, sed replaces the first occurrence per line.

	~~<code>y/..../..../</code> Transform~~

	== sed Pattern Flags ==		== sed Pattern Flags ==

2017-03-02T03:59:16Z

Command Line Options

← Older revision		Revision as of 03:59, 2 March 2017
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	<code>sed -e 's/a/A/' -e 's/b/B/' <old.txt >new.txt</code>		<code>sed -e 's/a/A/' -e 's/b/B/' <old.txt >new.txt</code>

			<code> -i </code> Inline editing.

	== References ==		== References ==

2017-01-10T20:52:21Z

Command Line Options

← Older revision		Revision as of 20:52, 10 January 2017
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	<code> -r </code>   Enable sed to use [[Regular Expressions]]		<code> -r </code>   Enable sed to use [[Regular Expressions]]


			<code> -e </code> The -e option lets you combine multiple commands

			<code>sed -e 's/a/A/' -e 's/b/B/' <old.txt >new.txt</code>

	== References ==		== References ==

2017-01-10T20:49:12Z

sed Pattern Flags

← Older revision		Revision as of 20:49, 10 January 2017
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	'''Example:''' <br />		'''Example:''' <br />
	<code>sed 's/red/blue/g' < file.txt</code><br />		<code>sed 's/red/blue/g' < file.txt</code><br />


	<code>/I</code> Ignore Case		<code>/I</code> Ignore Case