Difference between revisions of "Sed (editor)"

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Tags: Mobile web edit, Mobile edit
Tags: Mobile web edit, Mobile edit
Line 5: Line 5:
 
== Sed Basic examples ==
 
== Sed Basic examples ==
  
* [[Replace]] a TEXT_STRING
+
* [[Replace]] all occurrences of TEXT_STRING
:: <code>sed -i s/OLD_TEXT_STRING/NEW_TEXT_STRING/ file.txt</code>
+
:: <code>sed -i s/OLD_TEXT_STRING/NEW_TEXT_STRING/g file.txt</code>
  
 
* [[Append]] a text (TEST_TO_APPEND_AT_BEGINNIG) at the [[beginning]] of a line:
 
* [[Append]] a text (TEST_TO_APPEND_AT_BEGINNIG) at the [[beginning]] of a line:

Revision as of 06:53, 13 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

Related commands

See also

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