lptest(1) [bsd man page]

LPTEST(1)						      General Commands Manual							 LPTEST(1)

NAME

       lptest - generate lineprinter ripple pattern

SYNOPSIS

       lptest [ length [ count ] ]

DESCRIPTION

       Lptest  writes the traditional "ripple test" pattern on standard output.  In 96 lines, this pattern will print all 96 printable ASCII char-
       acters in each position.  While originally created to test printers, it is quite useful for testing terminals, driving terminal	ports  for
       debugging purposes, or any other task where a quick supply of random data is needed.

       The length argument specifies the output line length if the the default length of 79 is inappropriate.

       The  count  argument specifies the number of output lines to be generated if the default count of 200 is inappropriate.	Note that if count
       is to be specified, length must be also be specified.

SEE ALSO

BUGS

4.3 Berkeley Distribution					  April 29, 1985							 LPTEST(1)

GREP(1) 						      General Commands Manual							   GREP(1)

NAME

       grep - search a file for a pattern

SYNOPSIS

       grep [ option ...  ] pattern [ file ...	]

DESCRIPTION

       Grep  searches  the input files (standard input default) for lines (with newlines excluded) that match the pattern, a regular expression as
       defined in regexp(6).  Normally, each line matching the pattern is `selected', and each selected line is copied	to  the  standard  output.
       The options are

       -c     Print only a count of matching lines.
       -h     Do not print file name tags (headers) with output lines.
       -i     Ignore alphabetic case distinctions.  The implementation folds into lower case all letters in the pattern and input before interpre-
	      tation.  Matched lines are printed in their original form.
       -l     (ell) Print the names of files with selected lines; don't print the lines.
       -L     Print the names of files with no selected lines; the converse of -l.
       -n     Mark each printed line with its line number counted in its file.
       -s     Produce no output, but return status.
       -v     Reverse: print lines that do not match the pattern.

       Output lines are tagged by file name when there is more than one input file.  (To force this tagging, include  /dev/null  as  a	file  name
       argument.)

       Care should be taken when using the shell metacharacters $*[^|()= and newline in pattern; it is safest to enclose the entire expression in
       single quotes '...'.

SOURCE

       /sys/src/cmd/grep.c

SEE ALSO

       ed(1), awk(1), sed(1), sam(1), regexp(6)

DIAGNOSTICS

       Exit status is null if any lines are selected, or non-null when no lines are selected or an error occurs.

																	   GREP(1)