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Top Forums UNIX for Dummies Questions & Answers wildcard Post 62094 by abhi on Friday 11th of February 2005 10:10:22 AM
Old 02-11-2005
need help with grep :
down below a11,a1s,a1 r files and for ur info,there r other files also with "a" as thier first letter

dsadm@punbi1:/apps/dsadm/Practice/abhi/unix> grep a* a1

a11:this is a copy of a1

a1s:a1 is a1s

a1:a1

dsadm@punbi1:/apps/dsadm/Practice/abhi/unix> grep "a*" a1
this is
a1


plz explain the diffrence bw the two excution?
plz be elaborate..ive been using grep for sometime now but i am completely at a loss explaining the first output
 

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ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
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