LinuxQuestions.org - Regex help

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the_gripmaster

09-18-2012 09:37 PM

Regex help

This is just a simple script which echoes to the screen whatever the user types and quits when the user types quit or QUIT.

Code:

while read LINE; do 

  if [[ "$LINE" =~ quit|QUIT ]]; then 

    break

  fi 

  echo $LINE

done

How do I add case insensitivity to the quit word so that typing in quit, QuIt, Quit, or any other possibility matches the if statement?

tc_	09-18-2012 10:21 PM

Try

Code:

if [[ $(echo $LINE | tr [:lower:] [:upper:]) = "QUIT" ]]; then

    break

fi