Character Sequence

Meaning

$G

Redirect output to a file, overwriting the fileif it exists (>)

$G$G

Append output to a file (>>)

$L

Redirect input from a file (<)

$B

Redirect the output from one command as the input to a second command (|)

$T

Separate multiple commands

$1 through $9

Replaceable parameters; $1 is replaced with the macro's first command-line parameter, $2 the second, and so forth

$*

Replaced with all of the macro's command-line parameters