Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: how to grep and then to compare
Top Forums Shell Programming and Scripting how to grep and then to compare Post 302316452 by panyam on Friday 15th of May 2009 06:38:14 AM
Old 05-15-2009
Ravi,

user_name=`echo $QUERY_STRING | awk -F"=" '{print $2}'`
Pass_word=`echo $QUERY_STRING1 | awk -F"=" '{print $2}'`

now search for user_name and password in the file as below.

ex: cat reference_file.txt

Name | Gender |Password
rohit|male|xxxx
robin|male|YYY

Code:
 
user_name="robin"
res1=`awk -F "|"  -v var_name=$user_name  '{if ($1==var_name){print "found";exit} }' reference_file.txt`

if res1 is "found" go and search the file again for password validation.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

compare grep?

is there any way to compare two grep commands in an if statement? like: if grep blah = grep blah blah then is there a way to store the values of the greps and compare them? the greps are counting pattern matches in two different files and i need to make sure they match. (7 Replies)
Discussion started by: k@ssidy
7 Replies

2. UNIX for Dummies Questions & Answers

Compare 2 array files using grep

Using the bash shell I am trying to read in 2 files. The first file (file1) is a list of names to search for in (file2). If a name in file1 is found in file2 I want the entire line in file2 to be printed to an output file. File1 consists of a single column of names. File2 consists of several... (2 Replies)
Discussion started by: lanna001
2 Replies

3. AIX

how to grep and compare timestamp in a file with the current date

I want to read a log file from a particular location.In the logfile , lines contains timestamp.I need to compare the timestamp in the logfile with the current date.If the timpestamp in the log file is less than 4 hours then i need to read the file from that location.Below is the file format.Please... (1 Reply)
Discussion started by: achu
1 Replies

4. AIX

how to grep and compare timestamp in a file with the current date

I want to read a log file from a particular location.In the log file each line starts with timestamp.I need to compare the timestamp in the logfile with the current date.If the timpestamp in the log file is less than 4 hours then i need to read the file from that location.Below is the file... (1 Reply)
Discussion started by: achu
1 Replies

5. UNIX for Dummies Questions & Answers

Using grep to compare JPEGs

Hi, I'm not sure if this is the right place but I'm a newb so it seemed right. I'm trying to write some code to organize JPEGs. Its a long story, but essentially, I need the program to tell me whether a particular jpeg is of 1) a sheet of paper (lets say its solid pink that takes up the entire... (3 Replies)
Discussion started by: Bengel
3 Replies

6. Shell Programming and Scripting

Require compare command to compare 4 files

I have four files, I need to compare these files together. As such i know "sdiff and comm" commands but these commands compare 2 files together. If I use sdiff command then i have to compare each file with other which will increase the codes. Please suggest if you know some commands whcih can... (6 Replies)
Discussion started by: nehashine
6 Replies

7. Shell Programming and Scripting

Cannot compare argument in if statement in csh/grep command if argument starts with “-“

If ($argv == “-debug”) then Echo “in loop” Endif But this is not working. If I modify this code and remove “-“, then it works. Similarly I am getting problem using grep command also Grep “-debug” Filename Can someone please help me on how to resolve these... (1 Reply)
Discussion started by: sarbjit
1 Replies

8. Shell Programming and Scripting

script to grep a pattern from file compare contents with another file and replace

Hi All, Need help on this I have 2 files one file file1 which has several entries as : define service{ hostgroup_name !host1,!host5,!host6,.* service_description check_nrpe } define service{ hostgroup_name !host2,!host4,!host6,.* service_description check_opt } another... (2 Replies)
Discussion started by: namitai
2 Replies

9. Shell Programming and Scripting

Compare intervals (columns) from two files (awk, grep, Perl?)

Hi dear users, I need to compare numeric columns in two files. These files have the following structure. K.txt (4 columns) A001 chr21 9805831 9846011 A002 chr21 9806202 9846263 A003 chr21 9887188 9988593 A003 chr21 9887188 ... (2 Replies)
Discussion started by: jcvivar
2 Replies

10. UNIX for Dummies Questions & Answers

Compare data - Match first column and compare second

Hi guys, looking for some help with a way to compare data in two files but with some conditions. example, File 1 consists of site1,10.1.1.1 site2,20.2.2.2 site3,30.3.3.3 File 2 contains site1,l0.1.1.1 site2,50.1.1.1 site3,30.3.3.3 site4,40.1.1.1 I want to be able to match the... (1 Reply)
Discussion started by: mutley2202
1 Replies

LEARN ABOUT BSD

zgrep

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)
All times are GMT -4. The time now is 10:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy