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  • Status: Solved
  • Priority: Medium
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Find a pattern in a variable

Can anyone tell me how to find a pattern in a string of text in a variable using Bash in Linux?

Example:
var=Line 1: This is a line

I want to be able to search var to determine if : is part of the text.  If var does contain ":", I would like to be able to split it so that I can assign Line 1 to var1 and This is a line to var2.
0
doug5516
Asked:
doug5516
1 Solution
 
omarfaridCommented:
try

line=`grep "var=" file`
echo $line | grep ":"
if [ $? -eq 0 ]
then
      var2=`echo $line | awk -F":" '{ print $2 }'`
      var=`echo $line | awk -F"=" '{ print $2 }'`
fi
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TintinCommented:
If you have bash, you might as well use it rather than call external utilities.
#!/bin/bash
var='Line 1: This is a line'
 
if echo $var | grep -q  :
then
   var1=${var%%:*}
   var2=${var#*:}
fi

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