system cmdstr1 ?cmdstr2...?
Concatenates cmdstr1, cmdstr2 etc with space separators (see
the concat command) into a single command and then evaluates
the command using the standard system shell. On Unix systems,
this is '''/bin/sh''' and on Windows it is '''command.com'''.
The exit code of the command is returned.
This command differs from the exec command in that system
doesn't return the executed command's standard output as
the result string, and system goes through the Unix shell to
provide wildcard expansion, redirection, etc, as is normal
from an sh command line.
See also concat.
Category Command, a part of Tclx