Execute Command Enter a shell command appropriate to what you are doing and select Accept. Select Cancel to cancel this operation. Shell command are interpreted by the system shell (usually "/bin/sh"), and most likely have have a slightly different syntax than your normal command shell. The character ~ to refer to a home directory, is not recognized by the system shell. The command to be executed will receive the information you are sending to it via the standard input channel, which is normally via the keyboard, and whhich may not be valid for all programs. If the program requires input from a file, put %s in the appropriate location in the command string, and it will be replaced with the name of a temporary file when the program is invoked. The information will be written to the temporary file beforehand. Do not run these programs in the background with &, because this program will resume immediately and remove the temporary file before the external command has a chance to access it.