GREP(I) 3/3/73 GREP(I)
NAME
grep - search a file for a pattern
SYNOPSIS
grep [ -v ] [ -l ] [ -n ] expression [input] [output]
DESCRIPTION
Grep will search the input file (standard input default) for
each line containing the regular expression. Normally, each
line found is printed on the output file (standard output
default). If the -v flag is used, all lines but those
matching are printed. If the -l flag is used, each line
printed is preceded by its line number. If the -n flag is
used, no lines are printed, but the number of lines that
would normally have been printed is reported. If interrupt
is hit, the number of lines searched is printed.
For a complete description of the regular expression, see
ed(I). Care should be taken when using the characters $ * [
^ | ( ) and \ in the regular expression as they are also
meaningful to the shell. (Precede them by \)
SEE ALSO
ed(I), sh(I)
BUGS
Lines are limited to 512 characters; longer lines are
truncated.