Owner@Owner-PC ~
$ chmod +x test.sh
Owner@Owner-PC ~
$ ./test.sh
./test.sh: line 2: return: can only `return' from a function or sourced script
Owner@Owner-PC ~
$ bash --version
GNU bash, version 4.4.5(1)-release (x86_64-unknown-cygwin)
Copyright (C) 2016 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software; you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
I do not want to boot to linux && have to shutdown my windows stuff right now - so cygwin.
I'm confused. The return 1 statement can only be used in a function or a sourced shell script. This doesn't apply here?
Sorry I left out the bash header. I am using Bash.
I have several load.sh scripts, and want to call them all from one test.sh script.
Each load.sh script calls a C++ function that returns an error code (0 means EXIT_SUCCESS).
Is there a way to pass the error code from C++ function, to load.sh, to test.sh?
And then test.sh use the returned error code in a conditional statement?
Thanks.
tests.sh:
Code:
#!/bin/bash
if test ./load.sh ; then
echo "0"
else
echo "1"
fi
does not make any attempt to run the utility named main. And, as jim mcnamara already said, you don't use return to exit from a bash shell script. According to the standards, using return when you are not inside a function or inside a script invoked by the . command produces unspecified results. Running that script with bash prints two diagnostic messages:
Code:
load.sh: line 2: return: main: numeric argument required
load.sh: line 2: return: can only `return' from a function or sourced script
and exits with exit code 1. Running that same script with ksh produces no diagnostics and exits with exit code 0.
If you just want a shell script that invokes a utility named main and exits with an exit code matching that returned by main, you can use any of the following:
Code:
#!/bin/bash
main
rc=$?
if [ $rc -eq 0 ]
then exit 0
else exit $rc
fi
or:
Code:
#!/bin/bash
main
rc=$?
if [ $rc -eq 0 ]
then exit 0
fi
exit $rc
or:
Code:
#!/bin/bash
main
rc=$?
exit $rc
or:
Code:
#!/bin/bash
main
exit $?
or, more simply, just:
Code:
#!/bin/bash
main
This User Gave Thanks to Don Cragun For This Post:
Hi All,
Good Day, seeking for your assistance on how to not perform my 2nd, 3rd,4th etc.. function if my 1st function is in else condition.
#Body
function1()
{
if
then
echo "exist"
else
echo "not exist"
}
#if not exist in function1 my all other function will not proceed.... (4 Replies)
Heyas,
Since this question (similar) occur every now and then, and given the fact i was thinking about it just recently (1-2 weeks) anyway, i started to write something :p
The last point for motivation was... (17 Replies)
Hi All,
I am using malloc function for allocating dynamic memory.
When I am using below code on Linux server its working fine, but When I am trying the same code on HP UNIX server its returning NULL.
below is a fragment of code in which it is giving problem.
tmp = (format_tree... (4 Replies)
Hi searched hi and wide for this with no luck.
Maintaining a bash script that
#!/usr/bin/bash
#does some stuff like setting env etc.
f_do_dbwork
...
..
#Now I want to exit with the value of $err however $err is re-initialised to 0 on exiting the function
Always 0
....
... (3 Replies)
Hi All
In my script, I can call on several functions. I have a logging function that is called by any of these functions. What I would like is some way of identifying which function I am using and pass this to the log function as some parameter.
Is there some built in command or way of... (3 Replies)
Hello all,
I would like to know if it is possible to return a the result of a boolean expression from a function like this
function()
{
# some code
return ||
}
and what will be the return value ?
Thank you for help. (6 Replies)
hi
how can I return multiple values from a C function. I tried the following:
#include <stdio.h>
void foo(int id, char *first_name, char *last_name)
{
/*
this is just an example to illustrate my problem... real code makes
use of the "id" parameter.
*/
first_name = (char... (8 Replies)
Hi all,
I am very new to BASH shell programming. I need to return an integer from a function to the caller function. I did this:
but it keeps giving me wrong return:
Can someone help me out here, please?
Thanks (2 Replies)
I have two string returning function in ESQL/C
char *segment_name(lbuffer)
char *lbuffer;
{.....
and
char *get_bpdvalue(f_name)
char *f_name;
{......
both declared above main()
char *get_bpdvalue();
char *segment_name();
my problem is segment_name works on sprintf and strcpy... (5 Replies)