The Unix Key ( ! )
Although many things can be done from within spy, starting Houdini or other programs is often done with unix commands.
While you are in spy, any time you need to execute a unix command, simply precede the command with the ! key, and then type the command. For example:
df -k Enter
displays the amount of free disk space in kilobytes, using the unix command df.
The Tag Character ( % )
Unix commands often require the name of a file(s) as arguments. We
can provide these filenames from spy by using the
within our unix command. Anywhere this character is found, it will
insert the name(s) of the currently tagged files.
For example, if the files 1.pic, 2.pic and 3.pic are tagged, then the command:
! iplay % Enter
! iplay 1.pic 2.pic 3.pic Enter
If no file(s) are tagged, a command using the % character will act upon the currently highlighted file only.