文本处理命令

awk

• 将连续的n行合并成一行

╭─qihao@bogon ~/Desktop
╰─➤  cat test
1
2
3
4
5
6
7
8
9
╭─qihao@bogon ~/Desktop
╰─➤  awk 'ORS=NR%3?" ":"\n"{print}' test
1 2 3
4 5 6
7 8 9
╭─qihao@bogon ~/Desktop
╰─➤  awk 'ORS=NR%3?" ":"\n"{print $0 >> "out"}' test
╭─qihao@bogon ~/Desktop
╰─➤  cat out
1 2 3
4 5 6
7 8 9

find

• 给一个目录下的所有文件添加后缀find . -type f -exec mv {} {}.txt \;