Linux 指令篇：文本统计--wc(word count)
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.
With
no FILE, or when FILE is -, read standard input.
-l, --lines
print the newline counts
-w, --words
print the word counts
-c, --bytes
print the byte counts
-L, --max-line-length
print the length of the
longest line
==========================================================
e.g.
[root@localhost tmp]# cat 1.txt
100 Harry Potter:100:Magic School
200
Alex Jason:200:Sales
300 Yu Chao:300:SINA Product Development
[root@localhost tmp]# wc 1.txt
3 12 100 1.txt
[root@localhost tmp]# wc -l 1.txt
3 1.txt
[root@localhost tmp]# wc -w
1.txt
12 1.txt
[root@localhost tmp]# wc -c 1.txt
100 1.txt
[root@localhost tmp]# wc -L 1.txt
40 1.txt
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