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- GREP.EXE
-
-
- Class: UNIX
-
- Global Regular Expression Print
-
- NAME
- GREP Find occurences of regular expressions
-
- SYNOPSIS
- grep [-cfhlnvyz] <regular expression>[<regular expression>]... [<file>...]
-
- DESCRIPTION
- Grep is a Unix utility that permits the users to search a given set
- of files for the occurence of various regular expression(s). A regular
- expression is a text string that provides for the selection of very
- specific strings in the text being searched.
-
- OPTIONS
- -c count matching lines, no output for zero
- -f no regular expression given; file contains regular expressions
- -h no filename headers on lines
- -l list file names with match
- -n show line numbers
- -v show only lines that don't match
- -z count lines (even if if zero)
-
-
- EXAMPLES
- The best way to learn how to use grep is to try it. Grep is written to
- accept standard input (stdin) in lieu of a file. This permits grep to
- use text piped from another program such as a compiler, linker etc and
- select the desired lines.
-
- lc test.c | grep ^Warning,^Error
-
- This example will show any lines generated by the compiler that start
- with either Warning or Error. Please note that grep is case sensitive.
-
- grep -f regexp *.c
-
- This example will look for all regular expressions listed in the file
- regexp in all text files with .C as it's extent.
-
- Please refer to the text file on regular expressions for additional
- examples.