Am Fri, Jan 14, 2022 at 02:38:22PM +0000 schrieb russian sky: > > I don’t quite follow. Do you mean the “.*”, so you replace .* with .? > Yes. Based on the explanation of '*' in the gawk manual, it's > used to match zero/one/more times repeating of the preceding character which > in turn doesn't match the default > diff printing mode( >for removing, <for adding).
Why would it not match? . means “any character”. > It's not necessary to add '*' to '/^>.*(=|Linux)/'. I think it is. “.*” basically means “any string of any length, including 0. “.” means “exactly one character”. So your original pattern will match '>somestuff=', '> a=', and even '>Linux'. But without the *, it will only match if there is that one character between > and = or Linux. Acutally, diff adds a space after the >, so your expression will only match lines starting with '> =' or with '> Linux'. I’d actually replace gawk with sed, because the output of your gawk command leaves the space in. If an example output for diff is: 6,7c6 < CONFIG_CC_IS_GCC=y < CONFIG_GCC_VERSION=110100 --- > CONFIG_CC_IS_GCC=n Then your line returns: CONFIG_CC_IS_GCC=n If you use `sed -n 's/^> //p'` instead, the output will become: CONFIG_CC_IS_GCC=n -- Grüße | Greetings | Qapla’ Please do not share anything from, with or about me on any social network. If I had a thousand tongues, you would all be to my taste.
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