linux中计算行数,字数,字符数的10个wc命令示例

# wc [options] filenames

-c, --bytes
          输出目标文件中字节的计数结果

-m, --chars
          输出目标文件的中字符的计数结果

-l, --lines
          输出目标文件中 行 的计数结果

--files0-from=F
          从NUL-terminated指明的名字在文件F中的文件中读取，如果F是 - 则从标准输入读取

-L, --max-line-length
          输出目标文件中最大行的长度

-w, --words
          输出目标文件中单词的计数结果

[root@rumenz ~]# cat rumenz.txt

Red Hat
CentOS
Fedora
Debian
Scientific Linux
OpenSuse
Ubuntu
Xubuntu
Linux Mint
Pearl Linux
Slackware
Mandriva

[root@rumenz ~]# wc rumenz.txt

12  16 112 rumenz.txt

[root@rumenz ~]# wc -l rumenz.txt

12 rumenz.txt

[root@rumenz ~]# wc -w rumenz.txt

16 rumenz.txt

[root@rumenz ~]# wc -c rumenz.txt

112 rumenz.txt

[root@rumenz ~]# wc -m rumenz.txt

112 rumenz.txt

[root@rumenz ~]# wc -L rumenz.txt

16 rumenz.txt

[root@rumenz ~]# wc --help

Usage: wc [OPTION]... [FILE]...
  or:  wc [OPTION]... --files0-from=F
Print newline, word, and byte counts for each FILE, and a total line if
more than one FILE is specified.  With no FILE, or when FILE is -,
read standard input.
  -c, --bytes            print the byte counts
  -m, --chars            print the character counts
  -l, --lines            print the newline counts
  -L, --max-line-length  print the length of the longest line
  -w, --words            print the word counts
      --help   display this help and exit
      --version   output version information and exit

Report wc bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
For complete documentation, run: info coreutils 'wc invocation'

> ls -l | grep "^-" |wc -l
23

> ls -l | grep "^d" | wc -l
6

> ls -lR | grep "^-" |wc -l
13089

> ls -lR | grep "^d" | wc -l
1323