[原创]编程工具之Grep 使用介绍
刚刚找到一个 GNU grep version 2.0d 版。
这里可以下载使用 GREP20d_WIN.ZIP
(它包含能直接使用的grep.exe 以及C source code
喜欢编程者可以演究source code)。
这是for Windows 的版本，打入 grep.exe -?
一样也就列出使用参数。
看起来比我之前介绍的Grep版本参数还要多。
算是增强版不错用，
呵呵！
D:\OO\_Grep\grep20dw\grep.exe
[D:\OO\_Grep\grep20dw]D:\OO\_Grep\grep20dw\grep.exe -?
D:\OO\_Grep\grep20dw\grep.exe: option requires an argument -- ?
GNU grep version 2.0d
SYNOPOSIS
grep [-[[AB] ]<num>] [-[CEFGLSVbchilnqsvwx?]] [-[ef]] <expr> [<files...>]
DESCRIPTION
Grep searches the named input files (or standard input if no files are named, or
the file name - is given) for lines containing a match to the given pattern.
By default, grep prints the matching lines. There are three major variants of
grep, controlled by the following options.
-G Interpret pattern as a basic regular expression (see below). This is
the default.
-E Interpret pattern as an extended regular expression (see below).
-F Interpret pattern as a list of fixed strings, separated by newlines,
any of which is to be matched.
In addition, two variant programs egrep and fgrep are available. Egrep is
similiar (but not identical) to "grep -E", and is compatible with the
historical Unix egrep. Fgrep is the same as "grep -F".
All variants of grep understand the following options:
-num Matches will be printed with num lines of leading and trailing
context. However, grep will never print any given line more than once.
-A "num" Print num lines of trailing context after matching lines.
-B "num" Print num lines of leading context before matching lines.
-C Equivalent to -2.
-S Search subdirectories.
-V Print the version number of grep to standard error. This version
number should be included in all bug reports (see below).
-b Print the byte offset within the input file before each line of output.
-c Suppress normal output; instead print a count of matching lines for
each input file. With the -v option (see below), count non-matching
lines.
-e "pattern" Use pattern as the pattern; useful to protect patterns
beginning with -.
-f "file" Obtain the pattern from file.
-h Suppress the prefixing of filenames on output when multiple files are
searched.
-i Ignore case distinctions in both the pattern and the input files.
-L Suppress normal output; instead print the name of each input file from
which no output would normally have been printed.
-l Suppress normal output; instead print the name of each input file from
which output would normally have been printed.
-n Prefix each line of output with the line number within its input file.
-q Quiet; suppress normal output.
-s Suppress error messages about nonexistent or unreadable files.
-v Invert the sense of matching, to select non-matching lines.
-w Select only those lines containing matches that form whole words. The
test is that the matching substring must either be at the beginning of
the line, or preceded by a non-word constituent character. Similarly,
it must be either at the end of the line or followed by a non-word
constituent character. Word-constituent characters are letters, digits,
and the underscore.
-x Select only those matches that exactly match the whole line.
-? Displays this help.
Win32 port with subdirectory search created by Tim Charron
(full source available at http://www.interlog.com/~tcharron/grep.html)
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