Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: breaking out of while loop
Operating Systems Linux breaking out of while loop Post 302205408 by bigrigdriver on Saturday 14th of June 2008 11:26:50 PM
Old 06-15-2008
Break is used to break out of a loop, while continue is used to skip over a
step if it matches (fails to match) a condition.

Change this:
Code:
while read TN
do

typeset -l TN 

base_table=`db2 -x "select base_tabname from syscat.tables where
tabschema='${source_schema}' and tabname=upper('$TN') " `
echo ${base_table}
if [ ${base_table} != "DIM_$TN" || ${base_table} != "FACT_$TN" ] ; then
break 
else 
continue 
fi

to this:
Code:
while read TN
do
   if [ ${base_table} != "DIM_$TN" || ${base_table} != "FACT_$TN" ] ; then
      continue
   else
      typeset -l TN 

      base_table=`db2 -x "select base_tabname from syscat.tables where
      tabschema='${source_schema}' and tabname=upper('$TN') " `
      echo ${base_table}

   fi

That should cause the script to skip to the next iteration of the while loop if
either of the first conditions is true, else execute the else part of the if -
else - fi test.
 

10 More Discussions You Might Find Interesting

1. HP-UX

Breaking Mirror

Can some one point this UNIX newbie to a web site or directions on the steps needed to break a mirror in HP-UNIX to change a bad hard drive. (4 Replies)
Discussion started by: egress1
4 Replies

2. Shell Programming and Scripting

rsh breaking me out of loop

Hey all I have two scripts, one script containing the guts of my code. The other simply loops through a list, calling the other script on each iteration. Problem is when I add the line `/usr/bin/rsh -l root $HOSTNAME ""` to my main script, the loop never seems to exectute any more... (1 Reply)
Discussion started by: mark007
1 Replies

3. Shell Programming and Scripting

Breaking Loop by using another script

Hi friends, I have 2 scripts. 1) Master_Script.sh and 2) Sub_script.sh We run Master_script.sh manually where as sub_script.sh keeps generating output in every 2 minutes (through crontab). The output generated by sub_script.sh can be 0 or 1. As I told you, sub-script.sh keeps generating o/p... (7 Replies)
Discussion started by: anushree.a
7 Replies

4. Shell Programming and Scripting

Breaking if-else loop and variety of comparisions

Hello Friends, Im trying to write a script to invoke nagios. In order to do this I grep some words that comes from output of some backup scripts. When there is "End-of-tape detected" in directed output logs it should give alarm. First I would like to know if there is any better way to write... (5 Replies)
Discussion started by: EAGL€
5 Replies

5. Shell Programming and Scripting

Breaking up a file

Hi, I have a file that looks like this - lets call it fileA >hhm2 IIIIIIIIILLLLLLLMMMMMMMMMNNNNNNNNNNGGGGGGHHHHHHHH >hhm4 OOOOOKKKKKKKKMMMMMHHHHHLLLLLLLLWWWWWWWWWWW >hhm9 OOOOOOOIIIIIIIIIKKKKKKKKKMMMMMHHHHHHHHHHHLLLLLLLLLL So the file is pretty straight forward. The name is indicated... (2 Replies)
Discussion started by: phil_heath
2 Replies

6. Shell Programming and Scripting

Breaking out of loop

I have a main script with while loop having for loop inside. Again in for loop based on if condition few functions will be called. So when a function is called for certain condition it should come out from the main for loop and should continue with while loop. Let me explain with example here: I... (6 Replies)
Discussion started by: vpv0002
6 Replies

7. Shell Programming and Scripting

breaking for loop

Dear Friends, Here I need your guidance once again. I have for loop which check all files in a folder for a particular string. If the string is found in a file it returns value other than 0 else returns 0 value in variable t2. At times the string which we are looking for is in first file... (1 Reply)
Discussion started by: anushree.a
1 Replies

8. Shell Programming and Scripting

Ssh to remote server loop is breaking

hi All, cat login.list server1 userid1 server2 userid2 server3 userid3 ---------------------------------------- #SSHSCRIPT.ksh FILE=login.list while read vah vah_id do ssh $vah -l $vah_id "pwd" done < "$FILE" ----------------------------------------- When i... (2 Replies)
Discussion started by: raghur77
2 Replies

9. Shell Programming and Scripting

Breaking a pipe

Here's my code - for File in "${Files}"; do uuencode "${File}" "$(basename ${File} 2>&-)" 2>&-; done | mailx -s "subject" "a@b.c" Now I want to know if there a way to *not* send an email if the "Files" variables turns out to be blank. Any suggestions? Also, just to clarify, I... (4 Replies)
Discussion started by: nexional
4 Replies

10. Shell Programming and Scripting

While loop breaking when using "ssh" command inside

Hi , I am trying to read a list of hosts from a config file and trying to get file list from that host. For this I have used one while loop. cat "$ARCHIVE_CFG_FILE" | sed '/^$/d' | sed '/^#/d' | while read ARCHIVE_CFG do SOURCE_SERVER_NAME=`echo "$ARCHIVE_CFG" | awk -F '|' '{ print... (2 Replies)
Discussion started by: Anupam_Halder
2 Replies

LEARN ABOUT SUNOS

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)
All times are GMT -4. The time now is 11:25 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy