perl - why is the shell script executed before the print command?
i'm writing some simple scripts to help me learn perl.
why does the print command get called after the shell script is executed?
the purpose of the shell script is to simply echo to the screen "script run". which is does, but before the print command, you can clearly see the shell script is called after the print command.
you see, this could be a problem when i come to write my proper perl scripts, where i want a shell script to be called and executed before the perl script continues and executes another command.
i wrote plsql procedure that executed shell command
using java class
my problem is that in some reason
the shell command ( liks Is -l , mv ... ) are not recordnize
can someone help me with that
10x
Alodvg (2 Replies)
Hi,
I am working on a shell script that would verify if the mount command has executed or not. So , i have been doing this.
mount /dev/cdrom /mnt/cdrom
echo "$?"
if ; then
echo " Mount succesful"
else
echo " Mount unsuccessful"
fi (3 Replies)
How to do I get the return code of a subroutine in a perl module if invoke the subroutine as standalone,
I have an module say TestExit.pm and in that i have a subroutine say myTest() which is returns 12, if i were to call the subroutine from
command line like
CASE:1 ( Without an explict... (2 Replies)
Hi everyone,
when executing this command in unix:
echo "WM7 Fatal Alerts:", $(cat query1.txt) > a.csvIt works fine, but running this command in a shell script gives an error saying that there's a syntax error.
here is content of my script:
tdbsrvr$ vi hc.sh
"hc.sh" 22 lines, 509... (4 Replies)
I have a file with similar line like below
/u13/orabkup/u13/orabkup/abcd/arc82.123
Now I need to have only u13/orabkup/abcd/arc82.123 rather than /u13/orabkup/u13/orabkup/abcd/arc82.123
Kindly help me to print /u13/orabkup/ only once and the file name abcd/arc82.123..
Thanks & Regards... (1 Reply)
Hi
As per my requirement when I run . ./file.sh am getting the following error
-bash:ELF: command not found
when i execute as ./file.sh it is getting executed.How to resolve this.
Thanks in advance. (3 Replies)
Hi Guys,
I like to output every command executed in the script to a file.
I have tried set -x which does the same.
But it is not giving the logs of the child script which is being called from my script.
Is there any parameters in the Set command or someother way where i can see the log... (2 Replies)
I am able to execute awk command from shell prompt. but the same command is not getting executed when written and run in a bash script
the command from bash cmd prompt.
awk '/world/{for (i=2; i<NF; i++) printf $i " "; print $NF}1' myfile >tmp$$ ; mv tmp$$ myfile
file:
# hello world my... (4 Replies)
Hi All,
I am trying to write a shell script to check if a command executed successfully or not in rhel 7 and finding the installed tomcat version.
I am using below script.
var4=$(find / -name "catalina.jar" ! -size 0 |egrep -v... (6 Replies)
Discussion started by: sravani25
6 Replies
LEARN ABOUT ULTRIX
return
exit(1) User Commands exit(1)NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
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, following 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 word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO break(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)