Use of Colon in Shell script
Use of Colon in Shell script
- Sometimes it is useful to have a command which does “nothing”.
- The : (colon) command in Unix does nothing
#!/bin/sh
if grep unix myfile
then
:
else
echo “Sorry, unix was not found”
fi
#!/bin/sh
if grep unix myfile
then
:
else
echo “Sorry, unix was not found”
fi
