Omit Blank Lines while comparing two files. Post: 302333730

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Omit repeating lines

Can someone help me with the following 2 objectives? 1) The following command is just an example. It gets a list of all print jobs. From there I am trying to extract the printer name. It works with the following command: lpstat -W "completed" -o | awk -F- '{ print $1}' Problem is, I want...

2. Shell Programming and Scripting

comparing lines from 2 files

Hi Friends, I have 2 files A and B . I want to compare the 3rd line of file A and B . (I dont want to compare the 2 files, using diff or cmp). I just want to know whether 3rd line of A matches the 3 rd line of B. Can anybody share their knowledge on the same? Thanks , Vijaya

3. Shell Programming and Scripting

Comparing two files and appending only missing lines.

Hi All, I am a newbie to Shell scripting. Please help me with the Following problem, 1. I have two files with the same name in different locations in the same machine. Eg: /root/testfolder/a ---- location 1 /tmp/testfolder/a ----- location 2 2. I want to compare the files in...

4. Shell Programming and Scripting

Comparing 2 files and return the unique lines in first file

Hi, I have 2 files file1 ******** 01-05-09|java.xls| 02-05-08|c.txt| 08-01-09|perl.txt| 01-01-09|oracle.txt| ******** file2 ******** 01-02-09|windows.xls| 02-05-08|c.txt| 01-05-09|java.xls| 08-02-09|perl.txt| 01-01-09|oracle.txt| ********

5. Shell Programming and Scripting

PERL: removing blank lines from multiple files

Hi Guru's , I have a whole bunch of files in /var/tmp that i need to strip any blank lines from, so ive written the following script to identify the lines (which works perfectly).. but i wanted to know, how can I actually strip the identified lines from the actual source files ?? my...

6. UNIX for Dummies Questions & Answers

Comparing two files and count number of lines that match

Hello all, I always found help for my problems using the search option, but this time my request is too specific. I have two files that I want to compare. File1 is the index and File2 contains the data: File1: chr1 protein_coding exon 500 600 . + . gene_id "20532";...

7. Shell Programming and Scripting

Delete blank lines, if blank lines are more than one using shell

Hi, Consider a file named "testfile" The contents of file are as below first line added for test second line added for test third line added for test fourth line added for test fifth line added for test

8. Shell Programming and Scripting

Comparing lines of two different files

Hello, Please help me with this problem if you have a solution. I have two files: <file1> : In each line, first word is an Id and then other words that belong to this Id piMN-1 abc pqr xyz py12 niLM y12 FY4 pqs fiRLym F12 kite red <file2> : same as file1, but can have extra lds...

9. UNIX for Advanced & Expert Users

Delete blank spaces and blank lines in a file

Hi Gurus, Somebody can say me how to delete blank spaces and blank lines in a file unix, please. Thank you for advanced.

10. Shell Programming and Scripting

To check Blank Lines, Blank Records and Junk Characters in a File

LEARN ABOUT LINUX

vipw

VIPW(8) 						    System Management Commands							   VIPW(8)

NAME

       vipw, vigr - edit the password, group, shadow-password or shadow-group file

SYNOPSIS

       vipw [options]

       vigr [options]

DESCRIPTION

       The vipw and vigr commands edits the files /etc/passwd and /etc/group, respectively. With the -s flag, they will edit the shadow versions
       of those files, /etc/shadow and /etc/gshadow, respectively. The programs will set the appropriate locks to prevent file corruption. When
       looking for an editor, the programs will first try the environment variable $VISUAL, then the environment variable $EDITOR, and finally the
       default editor, vi(1).

OPTIONS

       The options which apply to the vipw and vigr commands are:

       -g, --group
	   Edit group database.

       -h, --help
	   Display help message and exit.

       -p, --passwd
	   Edit passwd database.

       -q, --quiet
	   Quiet mode.

       -s, --shadow
	   Edit shadow or gshadow database.

ENVIRONMENT

       VISUAL
	   Editor to be used.

       EDITOR
	   Editor to be used if VISUAL is not set.

FILES

       /etc/group
	   Group account information.

       /etc/gshadow
	   Secure group account information.

       /etc/passwd
	   User account information.

       /etc/shadow
	   Secure user account information.

SEE ALSO

       vi(1), group(5), gshadow(5) , passwd(5), , shadow(5).

System Management Commands					    06/24/2011								   VIPW(8)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Omit repeating lines

Discussion started by: TheCrunge

2. Shell Programming and Scripting

comparing lines from 2 files

Discussion started by: vijaya2006

3. Shell Programming and Scripting

Comparing two files and appending only missing lines.

Discussion started by: Karthick333031

4. Shell Programming and Scripting

Comparing 2 files and return the unique lines in first file

Discussion started by: shekhar_v4