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[vim与gvim技巧]vimgvim技巧大全(5) Heres something very curious: :%s/foo/bar/gcis of course a substitution effective for the entire filewith confirm on each occurrence of foowith the option of quitting at any point. However, using something similar, :g/foo/s//bar/gcusing the global g to effect the entire file --does NOT allow quitting at any point(even with the use of ESC). If there are hundreds of foo -- its an important fine point... Invite further comments...Arun Easi, April 23, 2002 23:33g/foo/s//bar/gc = run the command s//bar/gc for each of the linematching foo. It is like running multiple s// commands (Henceyou have to press q for each of the invocation). Theg in s///gc does not imply entire file, it just implies all occurenceon a line (or else, it would have substituted only the first)dyang@, May 30, 2002 9:04Here is one that deletes every other line (adjusting double spaced files): :g/.*/norm jdd pagaltzis()gmx_de, August 6, 2002 15:12This can be done much simpler: :%norm jddmra@frogne.dk, February 10, 2003 4:49Another cool g feature is to count the number of lines matching /regexp/ let x=0 | g/regexp/let x=x+1echo x Great, if you are editing data files. RegardsMikesetanta5@, March 27, 2003 2:14Reverse all the lines in a file: :g/^/m0 I have found that useful . . . honest! PK kkgahlot@, September 3, 2003 5:06Can I do something like this using :g (or anything else) I have a file which contains following kind of lines abc123=1,2,3bcd123=100,200,300abcb123=1,3,4 I want to convert this to following abc123=1,abc,2,abc,3,abcbcd123=100,bcd,200,bcd,300,bcdabcb123=1,abcb,3,abcb,4,abcb Basically I want to replace each comma in a line with first few letters, which are coming before 123, of that line surrounded by 2 commas.Anonymous, September 3, 2003 12:45To answer? kkgahlots question: global // execute s/\\([=,][^,]*\\)/\\1, . matchstr (getline (.), ^.\\{-}\\(123\\)\\@=) . /g To make the whole thing a little more transparent some explanations (