05-23-2009
Unable to access variable outside loop
I am unable to access the value set inside the loop from outside loop .
Thought of taking this to forum , I had seen other replies also , where a pipe takes the execution to another shell and mentioned thats the reason we do not get the variable outside loop . But I am getting an issue and I am not using pipe . A sample code below . I do not know where I am going wrong .Any help would be highly appreciated.
(note my tree1.txt contains only 1 line , just trying to test if I can access the value for a variable set inside a while loop)
*************
count=0
while read line
do
count=10
echo $count
done < tree1.lst
echo count:$count
************Result**********
10
count:0
10 More Discussions You Might Find Interesting
1. Solaris
Good morning,
I have a solaris 8 machine (Sunblade 1000) that is configured with NIS, I have checked everything I can think of to make sure everything is correctly configured which it appears it is but when I try to log into CDE it says it is unable to access my home area and it also does the... (1 Reply)
Discussion started by: Mr Pink
1 Replies
2. Shell Programming and Scripting
I have a while loop like this
cat ${filename} | while read fileline
do
...
done
I need to access a variable value $newfile inside this while loop
How will i do that?? (6 Replies)
Discussion started by: codeman007
6 Replies
3. Shell Programming and Scripting
I am writing a shell script using the korn shell. It seems that I am only
able to use local variables within a while loop that is reading a file.
(I can't access a variable outside a previously used while loop.) It's been
a while since I wrote shell scripts. Here is a sample
cat file.txt... (4 Replies)
Discussion started by: ricardo.ludwig
4 Replies
4. Solaris
Hi,
I am refered to see Infodoc 80854. but I am not able to access from sun.com. Is there any precedure to view these?. Please guide me.
Thanks in advance. (1 Reply)
Discussion started by: bpsunadm
1 Replies
5. HP-UX
hi friends,
I am using hp unix HP-UX B.11.11 .. Generally i do the compression to maintain the space availability . To compress the files first i used the TAR to collect all the files. it has done fine. when i am using command ls in the folder which has TAR file , it shows the TAR... (2 Replies)
Discussion started by: rdhaprakasam
2 Replies
6. AIX
I have recently aquired the following machine:
IBM,9113-550
Up until yesterday we could connect a dumb terminal to serial port 1 and get console login. However the dumb terminal died. We are now using a laptop with a null modem cable attached to serial port 1. This works perfectly for all of... (1 Reply)
Discussion started by: rsw7724
1 Replies
7. Shell Programming and Scripting
Hi,
i have the following code in which i am passing array tldn in awk using -v option & despite of that condition is not getting matched,can somebody suggest how to handle shell arrays in awk
tcount=(9875 9667)
awk -F"\t" -v ltldn="${tldn}" 'NR==FNR {POSTPAIDMDNS=$2"|"$3;next}
... (6 Replies)
Discussion started by: siramitsharma
6 Replies
8. UNIX for Dummies Questions & Answers
In any non-root account, whenever I enter mail, it gives me:
/var/spool/mail/root: Permission deniedI am not logged in as root, why is mail accessing root's mailbox ?
I am unable to enter the currently logged in user's mailbox.
Any help is appreciated :) (2 Replies)
Discussion started by: Hijanoqu
2 Replies
9. Shell Programming and Scripting
Below is my code:
count=0
if
...
...
else
...
find * -prune -type d | sort -r -n | while read d; do
count=1
if ; then
echo "Count1:$count"
...
...
break 2;
fi
...
done
...
fi
echo "Count2:$count" (9 Replies)
Discussion started by: mohtashims
9 Replies
10. Shell Programming and Scripting
Hello All,
I'm working on a script that will actually read a file consisting of data like the below:(ReportID,Sub_reportID,Sub_reportName)
1,1,ABC
1,2,DEF
1,3,GHI
2,1,JKL
2,2,MNO
3,1,PQR
I want to read the Sub Report details for a Report_ID using while loop and write these values into... (6 Replies)
Discussion started by: venkat_reddy
6 Replies
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)