Linux and Unix until and while
Quick links
About until, while
Syntax
Examples
Related commands
Linux and Unix main page
Shell built-in functions to repetitively execute a set of actions while/until conditions are evaluated TRUE.
while [ conditions ] ; do actions ; done
until [ conditions ] ; do actions ; done
filename=anything
while [ $filename ]
do
echo "file?"
read filename # read from terminal find . -name $filename -print
done
User is repeated prompted for a name of a file to be located, until the user chooses to finish execution.