LINUX - SED (STREAM EDITOR) USEFUL COMMANDS FOR PATTERN MATCHING & VIEW / UPDATE / EDIT ACTIONS

Following are list of useful SED commands.

Replaces all occurrences of word 'Unix' with 'UNIX' in Filename.txt 

sed 's/Unix/UNIX/g' Filename.txt
  
Print first 2 lines of filename.txt 

sed -n '1,2p' filename.txt
  
Print all lines containing word 'Unix' in filename.txt 

sed -n '/Unix/p' filename.txt

Delete all lines containing word 'Unix' in filename.txt 
  
sed '/Unix/d' filename.txt
  
Delete first 2 lines of filename.txt 

sed '1,2d' filename.txt
  
Replace all occurrences of word 'Unix' with 'UNIX' in first 10 lines of filename.txt 

sed '1,10s/Unix/UNIX/g' filename.txt

Delete empty Lines in the File

sed -i '/^$/d' filename.txt

 

 

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Products to which Article Applies

All Linux OS’s

Search Keywords:  sed command find replace editing updating printing lines line file multiple replacing finding match

Article Author: Tarun Boyella