[unix-history] / usr / src / cmd / apl / documents / I-beams

New I-beams:

	1I'file name'		-Switch input to 'file name'.
	1I0			-Switch input back to the terminal.

	2I'file name'		-Switch output to 'file name'.
	2I0			-Switch output back to the terminal.

	3I'file name'		-Switch output to 'file name'. If the
				 file exists, append to it.
	3I0			-Switch output back to the terminal.

	10I 'UNIX command'	-Execute the command as if it were
				 typed in to UNIX.

In the above examples, the zero could have also been a null vector.

Example:

	If OUTPUTFILE is a character vector which contains a file name,
the file could be printed by the command:

	10I'pr -l64 ',OUTPUTFILE,' | opr -lp'
Commit	Line	Data
b651a7ba BJ	1	New I-beams:
	2
	3	1I'file name' -Switch input to 'file name'.
	4	1I0 -Switch input back to the terminal.
	5
	6	2I'file name' -Switch output to 'file name'.
	7	2I0 -Switch output back to the terminal.
	8
	9	3I'file name' -Switch output to 'file name'. If the
	10	file exists, append to it.
	11	3I0 -Switch output back to the terminal.
	12
	13	10I 'UNIX command' -Execute the command as if it were
	14	typed in to UNIX.
	15
	16	In the above examples, the zero could have also been a null vector.
	17
	18	Example:
	19
	20	If OUTPUTFILE is a character vector which contains a file name,
	21	the file could be printed by the command:
	22
	23	10I'pr -l64 ',OUTPUTFILE,' \| opr -lp'