Question : 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.

Answer : Find a pattern in a variable

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

Open in New Window Select All

Question : Find a pattern in a variable

Answer : Find a pattern in a variable

If you have bash, you might as well use it rather than call external utilities. 1: 2: 3: 4: 5: 6: 7: 8: #!/bin/bash var='Line 1: This is a line' if echo $var | grep -q : then var1=${var%%:*} var2=${var#*:} fi Open in New Window Select All

If you have bash, you might as well use it rather than call external utilities.

1: 2: 3: 4: 5: 6: 7: 8:

#!/bin/bash var='Line 1: This is a line' if echo $var | grep -q : then var1=${var%%:} var2=${var#:} fi

Open in New Window Select All