In order to execute a command on your OS, you need to define it as a Shell method.
Alternatively, you can execute any command via #system even if it is not defined.
tee(file) â Tee Instance Public methods Returns a
unalias_command(alias) â self Class Public methods Unaliases the given alias
test(command, file1, file2) â true or false[command, file1, file2] â true or false Instance Public methods
glob(pattern) â Glob Instance Public methods def
top_level_test(command, file1, file2=nil) Instance Public methods See
mkdir(path) Instance Public methods Same as
alias_command(alias, command, *options) â self Class Public methods Creates
out(device) { block } Instance Public methods Calls device.print
system(command, *options) â SystemCommand Instance Public methods Executes
echo(*strings) â Echo Instance Public methods Returns a
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