Awk Sed 学习

1.资料搜集：

http://man.lupaworld.com/content/manage/ringkee/awk.htm

http://www.chinaunix.net/jh/24/691456.html

http://www.tsnc.edu.cn/default/tsnc_wgrj/doc/sed.htm

http://www.linuxsir.org/bbs/showthread.php?t=189620

2。VIM：

:s/foo/bar/g

Find each occurrence of 'foo' (in the current line only), and replace it with 'bar'.

:%s/foo/bar/g

Find each occurrence of 'foo' (in all lines), and replace it with 'bar'.

:%s/foo/bar/gc

Change each 'foo' to 'bar', but ask for confirmation first.

:%s/\<foo\>/bar/gc

Change only whole words exactly matching 'foo' to 'bar'; ask for confirmation.

:%s/foo/bar/gci

Change each 'foo' (case insensitive) to 'bar'; ask for confirmation.

This may be wanted after using :set noignorecase to make searches case sensitive (the default).

:%s/foo/bar/gcI

Change each 'foo' (case sensitive) to 'bar'; ask for confirmation.

This may be wanted after using :set ignorecase to make searches case insensitive.

输入^M, 按shift+Ctrl+V，shift+Ctrl+M