HP UX Operating Systems 369

grep(1)				grep(1)
Ken	112	Warring	St. Apt. A
Judy	387	Bowditch	Apt.	12
Ann	429	Sixth St.
the command:
grep	Judy	address
prints:
Judy	387	Bowditch	Apt.	12

To search a ®le for lines that contain either a Dec or Nov, use either of the following commands:

grep -E '[Dd]ec[Nn]ov' ®le egrep -i 'decnov' ®le

Search all ®les in the current directory for the string xyz:

grep xyz *

Search all ®les in the current directory subtree for the string xyz, and ensure that no error occurs due to ®le name expansion exceeding system argument list limits:

find . -type f -print xargs grep xyz

The previous example does not print the name of ®les where string xyz appears. To force grep to print ®le names, add a second argument to the grep command portion of the command line:

find . -type f -print xargs grep xyz /dev/null

In this form, the ®rst ®le name is that produced by find, and the second ®le name is the null ®le.

WARNINGS

(XPG4 only.) If the -qoption is speci®ed, the exit status will be zero if an input line is selected, even if an error was detected. Otherwise, default actions will be performed.

If the -woption is speci®ed with non-word constituent characters, then the output is unexpected.