ShellΒΆ
Execute a command on shell
(require 'asdf)
(asdf:run-shell-command "touch foo")
Reading output of command
(with-output-to-string (stream) (asdf:run-shell-command "ps ax" :output stream))
or better
(ql:quickload "trivial-shell")
(setq output (trivial-shell:shell-command "df -k"))