04-14-2014
Exec goes outside of loop
Hello all, I have an AIX 6.1 machine and i am having a hard time to figure out how i can make exec work inside a loop. i have a while loop which calls a case statement in it. when the user chooses a specific choice, it calls a script using exec. The reason that i use exec to run this script is because through this script it can open many windows so i do not want to have a lot of ksh running on my server. the problem is that when the user exits the script then it exits the shell. it does not go to the next line of the loop. Is there a way to have both the loop running and call the exec for executing my script or is it impossible? Thank you
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
In exec function say when i would like to remove the files
exec rm{}\;
Why is this "\" needed immediately after {} and what if i dont give it?
TIA,
Nisha (1 Reply)
Discussion started by: Nisha
1 Replies
2. UNIX for Advanced & Expert Users
I have read that exec "replaces the current process with a new one".
So I did
$ exec ls
and after this executed, my shell disappeared. I am assuming that my shell had PID xyz, and when I did exec ls, this ls got pid xyz, and when it terminated, there was no more shell process running, and... (5 Replies)
Discussion started by: JamesByars
5 Replies
3. UNIX for Dummies Questions & Answers
I have a ksh script that contains the following:
find /dir1/dir2 -type f -name "FILE.*" -newer /dir1/dir2/afterme.txt -exec cp /dir1/dir2/dir3 {} \;
When I run it from the cli, it runs fine. When I run it from the ksh script I get
find: missing argument to `-exec'
I also tried -exec cp... (40 Replies)
Discussion started by: bbbngowc
40 Replies
4. Shell Programming and Scripting
Hi all,
I had an issue regarding use of `` or exec in perl . `` are considered to be unsafe. Why? In my case an user would be giving some parameters as input and I will form an command of it and execute it using ``. It is important to capture output as i have to parse the output. As well as I need... (0 Replies)
Discussion started by: bharadiaam
0 Replies
5. UNIX for Advanced & Expert Users
Hi,
on AIX 6.L
I want to copy the result of grep -v to test directory then :
`hostname`@oracle$ls -l | grep -v RINT -exec cp {} test
grep: can't open -exec
grep: can't open cp
grep: can't open {}
test:°`.
Can you help me ?
Thank you. (3 Replies)
Discussion started by: big123456
3 Replies
6. UNIX for Dummies Questions & Answers
Hi,
i don't understand this part of one script
exec >> $Log_File 2>&1 (1 Reply)
Discussion started by: messi777
1 Replies
7. Ubuntu
This is a huge issue. and I need it fixed ASAP.
account-system gate-system race_traffic_sensor
achievement-system global race_voicepack
admin glue-system realdriveby
admin-system gps realism-system... (5 Replies)
Discussion started by: austech360
5 Replies
8. UNIX for Advanced & Expert Users
Hi,
I need to delete the last N days file using find.
I am trying to use
find . -mtime -10 -print
which lists down required files.
but when i use
find . -mtime -10 -exec ls -lrt {} \;
it gives me all files in the directory including the required files but the required files... (7 Replies)
Discussion started by: v_m1986
7 Replies
9. Shell Programming and Scripting
I have the following bash script lines in a file named test.sh.
#!/bin/bash
#
# Write Date to cron.log
#
echo "Begin SSI Load $(date +%d%b%y_%T)"
#
# Get the latest rates file for processing.
#
d=$(ls -tr /rms/data/ssi | grep -v "processed" | tail -n 1)
filename=$d
export filename... (3 Replies)
Discussion started by: ginowms
3 Replies
10. Shell Programming and Scripting
Here's my code:
awk -F '' 'NR==FNR {
if (/time/ && $5>10)
A=$2" "$3":"$4":"($5-01)
else if (/time/ && $5<01)
A=$2" "$3":"$4-01":"(59-$5)
else if (/time/ && $5<=10)
A=$2" "$3":"$4":0"($5-01)
else if (/close/) {
B=0
n1=n2;
... (2 Replies)
Discussion started by: klane
2 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)