In the syntax below, the square brackets must be included in the command syntax and do not indicate that that their contents are optional.
HOST COMMAND=[’command’...] TIMELIMIT=secs.
HOST executes one or more commands, each provided as a string in
COMMAND subcommand, in the shell of the
underlying operating system. PSPP runs each command in a separate
shell process and waits for it to finish before running the next one.
If a command fails (with a nonzero exit status, or because it is
killed by a signal), then PSPP does not run any remaining commands.
PSPP provides /dev/null as the shell’s standard input. If a process needs to read from stdin, redirect from a file or device, or use a pipe.
PSPP displays the shell’s standard output and standard error as PSPP
output. Redirect to a file or
/dev/null or another device if
this is not desired.
The following example runs
rsync to copy a file from a remote
server to the local file data.txt, writing
output to rsync-log.txt. PSPP displays the command’s error
output, if any. If
rsync needs to prompt the user (e.g. to
obtain a password), the command fails. Only if the
succeeds, PSPP then runs the
HOST COMMAND=['rsync remote:data.txt data.txt > rsync-log.txt' 'sha512sum -c data.txt.sha512sum].
By default, PSPP waits as long as necessary for the series of commands
to complete. Use the optional
TIMELIMIT subcommand to limit
the execution time to the specified number of seconds.
PSPP built for mingw does not support all the features of
PSPP rejects this command if the SAFER (see SET) setting is active.