/usr/lib/s9fes/help/spawn-shell-command is in scheme9 2010.11.13-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 | S9 LIB (spawn-shell-command string) ==> list
(spawn-shell-command/fd string) ==> list
(load-from-library "spawn-shell-command.scm")
Spawn a child process running the shell command STRING. Return
a list of two I/O-ports and the PID of the child process:
(input-port output-port integer)
The input-port can be used to read the output of the command and
the output-port to send input to the command. The command will be
executed by running the equivalent of:
execl("/bin/sh", "/bin/sh", "-c", STRING, NULL);
Error output of the child will be redirected to its standard output.
SPAWN-SHELL-COMMAND/FD is like SPAWN-SHELL-COMMAND, but delivers raw
Unix file descriptors instead of input/output ports.
(spawn-shell-command "ls -l /bin")
==> (#<input-port> #<output-port> 707)
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