Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: how to tell which OS via command line
Top Forums UNIX for Dummies Questions & Answers how to tell which OS via command line Post 302117656 by zazzybob on Tuesday 15th of May 2007 10:10:19 PM
Old 05-15-2007
Depends on Linux distribution.

Take a look under /etc for a file named *release*

Code:
ls /etc/*release*
cat /etc/*release*

Not all distributions provide this file.

Cheers
ZB
 

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need help in sed command [ printing a pattern + its line no or line no alone ]

Hello friends, Only very recently i started learning sed command...an i found that sed is faster in finding the patterns than some of my scripts that uses grep to check the patten inside a file using line by line search method which is time consuming. The below script... (4 Replies)
Discussion started by: frozensmilz
4 Replies

2. Shell Programming and Scripting

Need help! command working ok when executed in command line, but fails when run inside a script!

Hi everyone, when executing this command in unix: echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error. here is content of my script: tdbsrvr$ vi hc.sh "hc.sh" 22 lines, 509... (4 Replies)
Discussion started by: 4dirk1
4 Replies

3. Shell Programming and Scripting

Bash - Loading a command's output line by line into an array

I have been trying this a lot of different ways and haven't found too much online. Here's what I've got so far: j=0 declare -a first zero=(`cat $tmpfile`) for i in "${zero}" do command $i >> "${first}" ... (4 Replies)
Discussion started by: Azrael
4 Replies

4. Shell Programming and Scripting

sed command to replace a line at a specific line number with some other line

my requirement is, consider a file output cat output blah sdjfhjkd jsdfhjksdh sdfs 23423 sdfsdf sdf"sdfsdf"sdfsdf"""""dsf hellow there this doesnt look good et cetc etc etcetera i want to replace a line of line number 4 ("this doesnt look good") with some other line ... (3 Replies)
Discussion started by: vivek d r
3 Replies

5. Shell Programming and Scripting

sed command to grep multiple pattern present in single line and delete that line

here is what i want to achieve.. i have a file with below contents cat fileName blah blah blah . .DROP this REJECT that . --sport 7800 -j REJECT --reject-with icmp-port-unreachable --dport 7800 -j REJECT --reject-with icmp-port-unreachable . . . more blah blah blah --dport 3306... (14 Replies)
Discussion started by: vivek d r
14 Replies

6. UNIX for Dummies Questions & Answers

To find and display the middle line in a file using single line command.

Hi all, How can i display the middle line of a file using a single line command? (6 Replies)
Discussion started by: Lakme Pemmaiah
6 Replies

7. Shell Programming and Scripting

sed command to replace a line in a file using line number from the output of a pipe.

Sed command to replace a line in a file using line number from the output of a pipe. Is it possible to replace a whole line piped from someother command into a file at paritcular line... here is some basic execution flow.. the line number is 412 lineNo=412 Now i have a line... (1 Reply)
Discussion started by: vivek d r
1 Replies

8. Shell Programming and Scripting

Perl command line option '-n','-p' and multiple files: can it know a file name of a printed line?

I am looking for help in processing of those options: '-n' or '-p' I understand what they do and how to use them. But, I would like to use them with more than one file (and without any shell-loop; loading the 'perl' once.) I did try it and -n works on 2 files. Question is: - is it possible to... (6 Replies)
Discussion started by: alex_5161
6 Replies

9. Shell Programming and Scripting

How to read the output of a command line by line and pass it as a variable?

Hi, I have some 2000 names in a table like below. Java Oracle/SQL ANSI SQL SQL,DWH,DB DB&Java And by using for loop in my code i am able to get a single word but if there is any special character or space then it is considering as a next line. I have to execute the below queries in... (10 Replies)
Discussion started by: Samah
10 Replies

LEARN ABOUT CENTOS

rename

RENAME(1)							   User Commands							 RENAME(1)

NAME

       rename - rename files

SYNOPSIS

       rename [options] expression replacement file...

DESCRIPTION

       rename will rename the specified files by replacing the first occurrence of expression in their name by replacement.

OPTIONS

       -v, --verbose
	      Give visual feedback which files where renamed, if any.

       -V, --version
	      Display version information and exit.

       -s, --symlink
	      Peform rename on symlink target

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

EXAMPLES

       Given the files foo1, ..., foo9, foo10, ..., foo278, the commands

	      rename foo foo0 foo?
	      rename foo foo0 foo??

       will turn them into foo001, ..., foo009, foo010, ..., foo278.  And

	      rename .htm .html *.htm

       will fix the extension of your html files.

WARNING

       The  renaming  has  no safeguards.  If the user has permission to rewrite file names, the command will perform the action without any ques-
       tions.  For example, the result can be quite drastic when the command is run as root in the /lib directory.  Always make  a  backup  before
       running the command, unless you truly know what you are doing.

SEE ALSO

       mmv(1), mv(1)

AVAILABILITY

       The rename command is part of the util-linux package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux/.

util-linux							     June 2011								 RENAME(1)
All times are GMT -4. The time now is 01:18 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy