The return value of the main() function is the exit status for the program, it should normally be 0 for correct completion or something differnt for error or special conditions.
Your shell script should not use this value as the output of the program, but rather to be sure that the program has completed successfully. Instead you should write the decrypted password to stdout and read that value from your script.
in your script you would then have something like :
The script snippet here assumes you are using ksh/bash
I have an application on Informix 4GL, and I am invoking the shell script from the program, but I need to know if the shell script work fine or not, in order to continue the process.
I know that we can use $? to get the final status but this is on unix command. How can I return a value from the... (3 Replies)
Hi,
I trying to find the solution for writing the programming in unix by shell programming for sorting thr string in alphabetical order.
I getting diffculty in that ,, so i want to find out the solution for that
Please do needful
Thanks
Bhagyesh (1 Reply)
Hi,
I'm having a requirement where I need to call a C program from a shell script and return the value from the C program to shell script.
I refered a thread in this forum. But using that command in the code, it is throwing an error
clear_text_password=$(get_password)
Error: bash:... (24 Replies)
Can anybody pls look into this script and tell me where I went wrong. After running this script, it is showing like "Trying to overlay current working directory ABORT!!!"
:-(
ARGCNT=$#
if
then
echo "Two parameters are needed for this shell "
echo "Please try again with... (1 Reply)
Hi Folks,
The subject is my question:
Can we pass an array of strings from a Perl Program to a Shell Script?
Please provide some sample code.
Thanks
---------- Post updated at 11:52 PM ---------- Previous update was at 11:43 PM ----------
I got it.
Its here:... (0 Replies)
Found myself stuck on this seemingly trivial issue. I have this script which call other shell files to do their deeds. The shell files in turn call some other programs as well. My problem is that in two of these shell files, the control doesnt return to next command in script unless the Enter key... (2 Replies)
Hi All,
well , i am facing this problem.. i have tried a few sample codes but there isn't any solution . could anyone please give a sample code as of how to do this...
Please see the below details...and read the details carefully.
I have written some code, logic is
1)from... (4 Replies)
Hi All,
My program flow is as below
Windows batch -- > Cygwin batch --> zsh script
There are multiple Cygwin batch scripts that are called from Windows batch file . But when i am executing the first cygwin batch script the control goes to the zsh file and executes and stoping from... (1 Reply)
Hello All,
I have a UNIX script which will prepare anonymous oracle pl/sql block in a temporary file in run time and passes this file to sqlplus as given below.
cat > $v_Input_File 2>>$v_Log << EOF
BEGIN
EXECUTE IMMEDIATE 'ALTER SESSION FORCE PARALLEL DML PARALLEL 16';
EXECUTE... (1 Reply)
Hello All,
I have exactly same issue @vikas_trl had in following link:
https://www.unix.com/shell-programming-and-scripting/259854-control-not-returning-sqlplus-calling-unix-shell-script.html
I wonder if he or somebody else could find the issue's cause or the solution.
Any help would... (4 Replies)
Discussion started by: RicardoQ
4 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)