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Full Discussion: find and grep commands
Top Forums UNIX for Dummies Questions & Answers find and grep commands Post 302111060 by StrengthThaDon on Sunday 18th of March 2007 06:48:11 PM
Old 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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ZGREP(1)                                                      General Commands Manual                                                     ZGREP(1)

NAME
zgrep - search possibly compressed files for a regular expression SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename... DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code: (-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and fed to grep. If the GREP environment variable is set, zgrep uses it as the grep program to be invoked. EXIT CODE
2 - An option that is not supported was specified. AUTHOR
Charles Levert (charles@comm.polymtl.ca) SEE ALSO
grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1) ZGREP(1)
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