Documentation for routine shell

Documentation for routine shell, assembled from the following types:

role IO

From IO

(IO) sub shell

sub shell($cmd --> Proc)

Runs a command through the system shell. All shell meta characters are interpreted by the shell, including pipes, redirects, environment variable substitutions and so on. Shell escapes are a severe security concern and can cause confusion with unusual file names. Use run if you want to be safe.

The return value is of type Proc.

shell 'ls -lR | gzip -9 > ls-lR.gz';

See Proc for more details, for example on how to capture output.

class Proc

From Proc

(Proc) method shell

method shell($cmd:$cwd = $*CWD:$env --> Bool:D)

Runs the Proc object with the given command and environment which are passed through to the shell for parsing and execution.