wc 命令 使用说明
wc 命令还是很是简单的，通过 man 命令，可以见到可以选择的选项：
wc option file
并且 wc 命令支持 管道操作
其中较为常用的命令选项
-c 字符的个数
-l 文件的行数
-w 单词的个数
小例子：
代码语言：javascript复制➜ ~ wc -l /etc/passwd
47 /etc/passwd
➜ ~ wc -c /etc/passwd
2549 /etc/passwd
➜ ~ wc -w /etc/passwd
104 /etc/passwd
➜ ~ Man 手册，具体内容很简短，有时间大家还是多阅读英文手册。
代码语言：javascript复制NAME
wc - print newline, word, and byte counts for each file
SYNOPSIS
wc [OPTION]... [FILE]...
wc [OPTION]... --files0-from=F
DESCRIPTION
Print newline, word, and byte counts for each FILE, and a total line if more than one FILE is specified. A word is a non-zero-length sequence of char‐
acters delimited by white space.
With no FILE, or when FILE is -, read standard input.
The options below may be used to select which counts are printed, always in the following order: newline, word, character, byte, maximum line length.
-c, --bytes
print the byte counts
-m, --chars
print the character counts
-l, --lines
print the newline counts
--files0-from=F
read input from the files specified by NUL-terminated names in file F; If F is - then read names from standard input
-L, --max-line-length
print the maximum display width
-w, --words
print the word counts
--help display this help and exit
--version
output version information and exit保持更新，更多内容请关注cnblogs.com/xuyaowen;
