Sheel script shorcuts

 extract Date in DDMONYYYY format for future date 

 DT=`date +'%d%^b%Y' -d "365 days"`

echo $DT 

Grep Multiple Words in single time 

cat ****|grep -i 'Terrm1\|Term2\|Term3'

To comments every line in a script or in Crontab

  • :%s/^/#/g  =====> Put entries at start of all lines 
  • 10,20s/^/#/ =====> put entries from line 10 to 20
    How to remove certain terms like Special characters in shell Script 
    tr (trim command) : tr -d 'values to trim'  
      
      
      

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