while loop and variables in shelll script... Post: 29379

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Is there a better way I could have run this loop. (For loop with two variables)

Sorry for such a dreadful title, but I'm not sure how to be more descriptive. I'm hoping some of the more gurutastic out there can take a look at a solution I came up with to a problem, and advice if there are better ways to have gone about it. To make a long story short around 20K pieces of...

2. Shell Programming and Scripting

Using variables created sequentially in a loop while still inside of the loop [bash]

I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends. As an example I've written a script called question (The fist command is to show what is the contents of the...

3. Shell Programming and Scripting

SH: two variables in for loop

Hi, say I have a simple sh script like this: for i in a b c d do for j in 1 2 3 4 do echo "$i $j" done done and the output is a 1 a 2 a 3 a 4 b 1

4. Shell Programming and Scripting

Write shelll script to read file location

hi all i have a problem how to read file location..I read file as FILE=/home/tmp/new.file.but t is not useful for me.But i want my script read file location where the file is and copy in directory at boot time. Every time of booting files are copied in respective folder.please help !!!!:)

5. Shell Programming and Scripting

Need help in for loop with 2 variables

Hi, I need help on for loop need to add domain and IP In domain list 1.com 2.com 3.com In Ip list 1.1.0.1 1.2.0.1 1.3.0.1 1.com 1.1.0.1 2.com 1.2.0.1 3.com 1.3.0.1 I need to excute this command

6. Shell Programming and Scripting

Help with a For loop and variables

Greetings. I'm completely new to shell scripting and quickly trying to catch on. Here's my scenario: I have a text file, named ip.txt, containing IP addresses. I want to automatically perform a whois query on each address in the file, search the output for the country, and then put both the IP...

7. Shell Programming and Scripting

for loop with 2 variables

i am having a file contants as below my requirement is for file in `awk -F "," '{print $8,$9}'` <temp.txt echo "$file" echo "$file">test.txt a=`awk -F "," '{print $1}' `<test.txt b=`awk -F "," '{print $2}' `<test.txt but script reads , i want both the vales for further...

8. Shell Programming and Scripting

Need to loop three variables

Hi, I have a out from a command i need to grep a report. For that i need loop 3 variable for that. How i can loop need help. Symmetrix ID : 123456 Masking View Name : Host16 Last updated at : 04:13:06 PM on Thu Mar 17,2011 Initiator Group Name : Host16 Host...

9. Shell Programming and Scripting

Loop through variables

I am pretty new to Unix. Trying to pick up some slack while a coworker is out on vacation. Basically the script is working fine however when I go through the testing phase and have to make mods it is a pita. Here is an example of what I have #!/bin/ksh if then echo...

10. Shell Programming and Scripting

Help with variables in loop

Hello, please assist: users="test1 test2" keytest1="abcd" keytest2="dbcd" for i in $users do echo "$key${i}" > fileout done So, my objective is to take the current user (ie test1) in loop and echo its associated keyname (ie keytest1) variable to a file. The echo...

LEARN ABOUT ULTRIX

break

break(1)                                                           User Commands                                                          break(1)

NAME

       break, continue - shell built-in functions to escape from or advance within a controlling while, for, foreach, or until  loop

SYNOPSIS

   sh
       break [n]

       continue [n]

   csh
       break

       continue

   ksh
       *break [n]

       *continue [n]

DESCRIPTION

   sh
       The break utility exits from the enclosing for or while loop, if any. If n is specified, break n levels.

       The continue utility resumes the next iteration of the enclosing for or while loop. If n is specified, resume at the n-th enclosing loop.

   csh
       The  break  utility  resumes  execution after the end of the nearest enclosing foreach or while loop. The remaining commands on the current
       line are executed. This allows multilevel breaks to be written as a list of break commands, all on one line.

       The continue utility continues execution of the next iteration of the nearest enclosing while or foreach loop.

   ksh
       The break utility exits from the enclosed for, while, until, or select loop, if any. If n is specified,  then  break  n  levels.  If  n  is
       greater than the number of enclosing loops, the outermost enclosing loop shall be exited.

       The  continue utility resumes the next iteration of the enclosed for, while, until, or select loop. If n is specified then resume at the n-
       th enclosed loop. If n is greater than the number of enclosing loops, the outermost enclosing loop shall be used.

       On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:

       1.  Variable assignment lists preceding the command remain in effect when the command completes.

       2.  I/O redirections are processed after variable assignments.

       3.  Errors cause a script that contains them to abort.

       4.  Words that follow a command preceded by ** that are in the format of a variable assignment are expanded with the same rules as a  vari-
           able  assignment.  This means that tilde substitution is performed after the = sign, and also that word splitting and file name genera-
           tion are not performed.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), exit(1), ksh(1), sh( 1), attributes(5)

SunOS 5.10                                                          17 Jul 2002                                                           break(1)