Difference between revisions of "Sed (editor)"

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Tags: Mobile web edit, Mobile edit
Tags: Mobile web edit, Mobile edit
Line 23: Line 23:
 
<pre>sed s/'^'/'\<code\>'/ | sed s/'$'/'\<\/code\>'/</pre>
 
<pre>sed s/'^'/'\<code\>'/ | sed s/'$'/'\<\/code\>'/</pre>
  
* Replace [[spaces]]: <code>[[sed]] s/' '//g</code>
+
* Replace [[spaces]]:
 +
:<code>[[sed]] s/' '//g</code>
  
 
== Help ==
 
== Help ==

Revision as of 06:16, 20 April 2021

sed utility is using for text processing, such as strings replacements.


Sed Basic examples

  • Replace all occurrences of TEXT_STRING
sed -i s/OLD_TEXT_STRING/NEW_TEXT_STRING/g file.txt
sed -i s/^/TEST_TO_APPEND_AT_BEGINNIG/ file.txt
Append a spce at the beggining of lines:
sed s/^./" "/
sed -i s/$/TEST_TO_APPEND_AT_END/ file.txt
  • Move N lines from text file to new file:
head -1000 input > output && sed -i '1,+999d' input [1]
  • Add at the beginning and end of a sentence:
    <code> and </code>
sed s/'^'/'\<code\>'/ | sed s/'$'/'\<\/code\>'/
sed s/' '//g

Help

usage: sed script [-Ealn] [-i extension] [file ...]

      sed [-Ealn] [-i extension] [-e script] ... [-f script_file] ... [file ...]

Related commands

See also

  • https://stackoverflow.com/a/801036
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