Timeline for What does \? mean in a regular expression?
Current License: CC BY-SA 2.5
8 events
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| Apr 13, 2017 at 12:36 | history | edited | CommunityBot |
replaced http://unix.stackexchange.com/ with https://unix.stackexchange.com/
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| Dec 8, 2014 at 0:51 | comment | added | Stéphane Chazelas |
\? is a GNUism though.
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| Dec 8, 2014 at 0:50 | comment | added | Stéphane Chazelas |
@KeithThompson, grep -E is the official POSIX way. egrep was deprecated in susv2 (1997) and removed in susv3 (2001) from the POSIX and Unix specs.
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| Nov 5, 2011 at 21:30 | comment | added | Keith Thompson |
The egrep command is equivalent to grep -E. For versions other than GNU grep, grep might or might not accept the -E option, and egrep might be a separate program.
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| Mar 24, 2011 at 3:21 | history | edited | Mikel | CC BY-SA 2.5 |
added 125 characters in body; added 128 characters in body
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| Mar 24, 2011 at 3:10 | history | edited | Mikel | CC BY-SA 2.5 |
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| Mar 24, 2011 at 3:00 | history | edited | Mikel | CC BY-SA 2.5 |
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| Mar 24, 2011 at 2:50 | history | answered | Mikel | CC BY-SA 2.5 |