grep -c的用作

今天在执行以下命令的时候：

 [[email protected]_SYS zy]# grep -c 'model name' /proc/cpuinfo

4

这个命令的意思是查看cpu的个数，刚开始我还有些疑惑：-c的作用是什么呢？

然后我就查了一下命令，grep的参数是如是解释的：

 -c, --count

              Suppress normal output; instead print a count of matching lines for  each  input  file.   With  the  -v,

              --invert-match option (see below), count non-matching lines.

下面我们对grep进行简单的总结

NAME

       grep, egrep, fgrep - print lines matching a pattern

SYNOPSIS

       grep [options] PATTERN [FILE...]

       grep [options] [-e PATTERN | -f FILE] [FILE...]

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.

       In addition, two variant programs egrep and fgrep are available.  Egrep is the same as grep -E.  Fgrep  is  the

       same as grep -F.

有什么不懂的就去查看grep的参数！O(∩_∩)O~