IF statement

[simpson]

I would like to create an if statment that will evaluation if a variable contains a sequence. ie. does vairable 'var_a' contain 'abc' I am kind of confused as to how I would approace this.
Thanks

 

[columb]

Look at expr - for example

if expr "$var" : ".*test_string.*" >/dev/null
then
  echo $var contains 'test_string'
fi

alternatively you can use a case statement

case $var in
  *test_string*) echo var contains test_string;;
esac

Ceci n'est pas une signature
Columb Healy

 

[simpson]

Thank you so much, this worked perfectly... Greatly appreciated.

 

[feherke]

Hi

Alternatively :

if [[ "$var_a" = *test_string* ]]
then
  echo $var contains 'test_string'
fi

Tested with [tt]bash[/tt] and [tt]ksh[/tt].

Feherke.

http://rootshell.be/~feherke/