Linux文本操作命令

wc [-clw] 文件

$ wc testfile           # testfile文件的统计信息  
3 92 598 testfile       # testfile文件的行数为3、单词数92、字节数598

diff me.txt me_copy.txt -y
This is the first post.                                       | This is the first first post.
This is the second line.                                      | This is the second second line.
This is the third line.                                       | This is the third third line..

paste [-s] [-d<间隔字符>][文件1][文件2][文件...]

$ cat p1
1
2
3

$ cat p2
a
b
c
d

$ cat p3
I
II
III

$ paste  p1 p2 p3
1       a       I
2       b       II
3       c       III
        d

$ paste -d '%^&' p1 p2 p3
1%a^I
2%b^II
3%c^III
%d^

$ paste -s p1 p2 p3
1       2       3
a       b       c       d
I       II      III

sort [-bcfMnrtk][源文件][-o 输出文件]

$ sort t1

1
13
14
2
4
5
6

$ sort -n t1

1
2
4
5
6
13
14

$ sort -nr t1
14
13
6
5
4
2
1

$ cat t2
banana:30:5.5
apple:10:2.5
pear:90:2.3
orange:20:3.4

$ sort -t ':' -k 2 t2
apple:10:2.5
orange:20:3.4
banana:30:5.5
pear:90:2.3