Writing Deskshell commands

Variable substitutions

The value of a variable can be substituted into a script with:

   $name

So, for example, $editors will have the value:

   vi xedit ed

You can find the number of elements in a list with variable. For example:

   elements=$#editors

sets elements to ``3''.

Note that:

   var=()

sets var to a list with no elements, so $#var is ``0'', whereas:

   var=''

sets var to an empty string, so $#var is ``1''.