linux_wiki:sed

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linux_wiki:sed [2016/02/05 13:29]
billdozor [Remove Lines] 		linux_wiki:sed [2016/03/18 23:23]
billdozor [Sed]
Line 6: Line 6:
  
 **Checklist** **Checklist**
-  * Linux distro with the 'sed' package installed+  * Distro(s): Any 
 +  * Package: 'sed' package installed
  
 ---- ----
  
-===== Insert Lines =====+====== Print Lines ====== 
 + 
 +Different ways to print specific lines. 
 + 
 +Print only line 5 pattern space<code bash>sed -n '5p' /etc/passwd</code> 
 +  * -n => silent; do not print the entire file  
 + 
 +Line 5, don't delete it<code bash>sed '5!d' /etc/passwd</code> 
 +  * !d => don't delete 
 + 
 +Print up to line 5, quit and delete the rest of the output<code bash>sed '5q;d' /etc/passwd</code> 
 +  * q => quit/stop processing more input 
 +  * d => delete the pattern space (removes all but line 5 from output) 
 + 
 +---- 
 + 
 +====== Insert Lines ======
  
 Insert lines before a found matched pattern. Insert lines before a found matched pattern.
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 </code> </code>
  
-==== Insert at first line ====+===== Insert at first line =====
  
 Insert also works against line numbers. Insert also works against line numbers.
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 ---- ----
  
-===== Append Lines =====+====== Append Lines ======
  
 Append lines after a found matched pattern. Append lines after a found matched pattern.
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 ---- ----
  
-===== Remove Lines =====+====== Remove Lines ======
  
 Remove lines that match a pattern. Remove lines that match a pattern.
  • linux_wiki/sed.txt
  • Last modified: 2019/05/25 23:50
  • (external edit)