Re: help : cat help | grep '^99\d' don't work

On 2006-12-02, key9 wrote:
hi all

I have an file:
980<tab>980
981 981
982 982
983 983
984 984
985 985
986 986
987 987
988 988
989 989
990 990
991 991
992 992
993 993
994 994



I hope I can using "^99\d" to list 99x
or using "^992\t" to list "992"

but that don't work , why?

I have tried using [\d]... , no use.

grep '^99[0-9]'

grep '^992'

--
Chris F.A. Johnson, author <http://cfaj.freeshell.org/shell>
Shell Scripting Recipes: A Problem-Solution Approach (2005, Apress)
===== My code in this post, if any, assumes the POSIX locale
===== and is released under the GNU General Public Licence
.

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