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Jun
17
awarded  Constituent
Jun
17
awarded  Caucus
Mar
31
awarded  Necromancer
Aug
23
comment Remove all lines except D
@OlivierDulac That won't work, grep -F allows only literal strings, and yes I'm aware of this caveat, I assumed the OP's files would all look like their example and not have a D| in the middle of a line.
Aug
23
awarded  Yearling
Aug
23
answered Remove all lines except D
Aug
16
revised Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
added 58 characters in body
Aug
16
comment Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
Um, agrep (from ftp.cs.arizona.edu/agrep) does support patterns from a file, btw, it's -f
Aug
16
comment Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
Oh, didn't know that, I couldn't use agrep either. I've implemented the Wu-Manber myself because I needed a twist though: matching ~200k - 900k patterns against 10+ million files, only report matches ... don't suppose that's of any use?
Aug
16
answered Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
Aug
16
comment Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
@IgnacioVazquez-Abrams not quite, you can match them in O(N + M), N the file length, M the sum of all pattern lengths
Jun
26
answered Good method to compare time?
Nov
27
answered How do you specify a format for the input to date?
Oct
11
awarded  Editor
Oct
11
revised Equivalent of date --reference in Solaris
added 99 characters in body
Oct
11
answered Equivalent of date --reference in Solaris
Jul
23
awarded  Supporter
Jul
11
answered Date computations without GNU tools
Jul
11
answered date, get current 15 minute interval
Apr
15
awarded  Analytical