03-18-2007
find and grep commands
I'm having trouble with the following commands
i. count the number of lines which end in a 4 letter word
grep '[a-z-A-Z]{4\}$' bfile <<seems to print out everything
abc abc abcd
joe joe john
bob bill
gregory greg
greg gregory
the grep command prints out the lines with 4 letter words and the line "greg gregory"
ii. count the number of lines that
contain a number larger than or equal to 100,
contain exactly 5 characters
iii. find all the files in a hierarchy which contain more than 25 characters
Last edited by StrengthThaDon; 03-18-2007 at 08:02 PM..
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LEARN ABOUT NETBSD
zegrep
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