grimoire

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sed.md (277B)


      1 # sed
      2 
      3 print specific line number from file
      4 ```
      5 sed 'n!d' file
      6 ```
      7 
      8 add character
      9 ```
     10 s/regex/&n/
     11 ```
     12 
     13 convert first word before equals symbol from lower to upper 
     14 _this is used in config files such as ifcfg to convert all variable names_
     15 ```
     16 :%s/^[[:alpha:]_]\{1,\}=/\U&/
     17 ```