Sponsored Content
Full Discussion: Shell basics
Top Forums Shell Programming and Scripting Shell basics Post 302076684 by pradeep_desh on Thursday 15th of June 2006 07:12:07 AM
Old 06-15-2006
Shell basics

Hi All,

I have a basic question in Scripting.

Can anyone tell me what is the difference b/w the two syntax :

if (( $lines = 0 ));

and

if [ $lines -eq 0 ];

when do we use the square brackets & when to use the paranthesis.


Thanks,
Pradeep
 

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Basics of shell scripting

Anybody please tell me basics of shell scripts (2 Replies)
Discussion started by: arvind.elle
2 Replies

2. Shell Programming and Scripting

awk basics

what is wrong with the code below; it starts ,then does nothing, (even it doesn't end) #!/bin/awk x=1 b="foo" awk printf("%s got a %d on the last test\n","Jim",83) myout=("%s-%d",b,x) print myout (6 Replies)
Discussion started by: gfhgfnhhn
6 Replies

3. UNIX for Dummies Questions & Answers

Installation basics

hello, Im new to this Os. so, can i get any information'bout installation basics of unix. (1 Reply)
Discussion started by: Abhijit Bhatt
1 Replies

4. Shell Programming and Scripting

SHELL Scripting Basics

Hi, I am new to shell scripting, i have experience in solaris, can anyone share me the link and experience to learn shell scripting from basics Thanks RJS (2 Replies)
Discussion started by: rajasekg
2 Replies

5. Shell Programming and Scripting

LEARN SHELL SCRIPTING BASICS

I am beginner to the SHELL SCRIPT and want to Learn SHELL SCRIPT Basics. This thread should help to all beginners who want to learn SHELL SCRIPT *** Thanks in advance to those who will contribute on this thread *** Please guide me and all beginners... 1. Is there any good e-book... (3 Replies)
Discussion started by: sagarsbhandare
3 Replies

6. UNIX for Dummies Questions & Answers

help me with basics

hello everyone i have to start with unix as it is a part of my training programme and i have to do a self study, i dont know where to start from. i need some basic questions to be answerd like why we use unix ? what is a terminal? what is an editor? why we write commands inside terminal? these... (4 Replies)
Discussion started by: aryancool
4 Replies

7. UNIX for Dummies Questions & Answers

UNIX Basics

Hello, 1) I am trying to get involved in UNIX for educational purposes so I have installed the latest Ubuntu edition 12.04. Do you know another package that I could use it instead for educational purposes? 2)What is the difference between "~$" and "/$" (it comes with cd / and cd ~) .The... (1 Reply)
Discussion started by: Iwn
1 Replies

8. UNIX for Dummies Questions & Answers

UNIX Basics about shell and editors and default settings

Hi all, I have 3-4 years of experience working on unix environment. I am not a beginner, but unix is not my primary skill set. I am very good at awk programming and doing many of my tasks very well, really very weak on basics. I moved to a new job recently and the settings there are driving me... (5 Replies)
Discussion started by: ysvsr1
5 Replies
DEBCONF-SET-SELECTIONS(1)					      Debconf						 DEBCONF-SET-SELECTIONS(1)

NAME
debconf-set-selections - insert new default values into the debconf database SYNOPSIS
debconf-set-selections file debconf-get-selections | ssh newhost debconf-set-selections DESCRIPTION
debconf-set-selections can be used to pre-seed the debconf database with answers, or to change answers in the database. Each question will be marked as seen to prevent debconf from asking the question interactively. Reads from a file if a filename is given, otherwise from stdin. WARNING
Only use this command to seed debconf values for packages that will be or are installed. Otherwise you can end up with values in the database for uninstalled packages that will not go away, or with worse problems involving shared values. It is recommended that this only be used to seed the database if the originating machine has an identical install. DATA FORMAT
The data is a series of lines. Lines beginning with a # character are comments. Blank lines are ignored. All other lines set the value of one question, and should contain four values, each separated by one character of whitespace. The first value is the name of the package that owns the question. The second is the name of the question, the third value is the type of this question, and the fourth value (through the end of the line) is the value to use for the answer of the question. Alternatively, the third value can be "seen"; then the preseed line only controls whether the question is marked as seen in debconf's database. Note that preseeding a question's value defaults to marking that question as seen, so to override the default value without marking a question seen, you need two lines. Lines can be continued to the next line by ending them with a "" character. EXAMPLES
# Force debconf priority to critical. debconf debconf/priority select critical # Override default frontend to readline, but allow user to select. debconf debconf/frontend select readline debconf debconf/frontend seen false OPTIONS
--verbose, -v verbose output --checkonly, -c only check the input file format, do not save changes to database SEE ALSO
debconf-get-selections(1) (available in the debconf-utils package) AUTHOR
Petter Reinholdtsen <pere@hungry.com> 2011-06-22 DEBCONF-SET-SELECTIONS(1)
All times are GMT -4. The time now is 05:16 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy