09-18-2007
Quote:
Originally Posted by
useless79
hi,
why the following is giving entire /etc/passwd file as output
even when it does not contain ^ or $ .
grep ' [^$] ' /etc/passwd
whereas the following is not giving any output
grep ' ^$ ' /etc/passwd
Hey,
When expression /^$/ comes to sed or awk it means the blank line.
But when i checked it with grep it perfectly shows the o/p.
i had
---------------
cc
dsdsd
dsddddsdfgfgfgfgfgf
---------------
and when i used the grep as..
grep '[^$]' x.txt
it shows ..
-------------------
cc
dsdsd
dsddddsdfgfgfgfgfgf
-------------------
Its working !!
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi,
I am getting different output for grep depending which directory I am in.
The following is a transcript of my session, I am using egrep but have also used grep -E. The directory names have been changed for security:
$pwd
/dir1/dir2/dir3/dir4
$echo 000000 |egrep -v
$echo $?
1
$cd ..... (10 Replies)
Discussion started by: Bab00shka
10 Replies
2. UNIX for Dummies Questions & Answers
I'm using this command to get a recursive grep
find . -name *.i -exec grep 'blah blah' {} \; -exec ls {} \;
now I would like to obtain just the list of the files and not also the line of the file.
How should I change the syntax?
thank you, (5 Replies)
Discussion started by: f_o_555
5 Replies
3. Shell Programming and Scripting
How can I perform a grep and it will give me a contain word (maintenance) instead of a string or the whole line of info.
grep with exclusive output?
or is there a CONTAIN with IF statement ?
I have a file call yast2_vhost.conf and it contain multiple entries call
maintenance.html... (2 Replies)
Discussion started by: yoom@hostwebase
2 Replies
4. UNIX for Dummies Questions & Answers
Hello,
I have a list of stings that I'm using with grep to determine which files contain the strings. Here's what I have now:
list of strings in a file (list.txt):
/directory/direc tory/file.jsp
/dire ctory/directory/direct ory/file.jsp
grep I'm doing to find files that contain the... (4 Replies)
Discussion started by: upstate_boy
4 Replies
5. Shell Programming and Scripting
From below mentioned line,i have to display output as last word only ie:arch_1_105366_720809746.dbf
-rw-r----- 1 oracle dba 98887680 02 Mar 12:01 arch_1_105366_720809746.dbf
Please .. (5 Replies)
Discussion started by: Sanal
5 Replies
6. Shell Programming and Scripting
hi
i am running grep -c on a bunch of files some of which may be non existent. The output i get is in the same order as the files grep checks and this is what i want as i need to copy the output to a spreadsheet. However when i tried to pipe the output to sed to strip away the filenames and just... (5 Replies)
Discussion started by: chronics
5 Replies
7. UNIX for Dummies Questions & Answers
Hi all,
Here is my problem:
I'm testing a login script for our mac Machines. This script output's in a csv file.
The login script looks like this:
echo "${computername}|${data1}|${data2}|${data3}" >> file.csv
The csv file looks like this:
Computername1|data1|data2|data3... (4 Replies)
Discussion started by: mattiasvdm
4 Replies
8. Shell Programming and Scripting
currently I have process from a raw file to this stage
ALTER TABLE "EXCEL_ADMIN"."TC_TXN_VOID" ADD CONSTRAINT "PK_TC_TXN_VOID" PRIMARY KEY ("TC_TXN_IID")
ALTER TABLE "EXCEL_ADMIN"."TC_TXN_AMT" ADD CONSTRAINT "PK_TC_TXN_AMT" PRIMARY KEY ("TC_TXN_AMT_IID")
ALTER TABLE... (10 Replies)
Discussion started by: jediwannabe
10 Replies
9. UNIX for Dummies Questions & Answers
Hi guys -
I am trying to have a certain file display information horizontally divided by a pipe.
for example
file name: foo.dat has information like this:
name1
name2
name3
namenamename4
namene5
I would like it to display like this:
name1|name2|name3|namenamename4|namene5
... (6 Replies)
Discussion started by: DallasT
6 Replies
10. UNIX for Beginners Questions & Answers
Hi.
I have a command line that will generate exif data from .jpg files...
So to get the Camera Model I use:
find -iname "*.jpg" -print0 | xargs -0 exiftool -a | grep "Camera Model"
But I want the file name AND the camera model... How to I get the grep to give me TWO bits of information from... (2 Replies)
Discussion started by: TuftyDave
2 Replies
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 is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, 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 zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO
grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)
ZGREP(1)