Hi,
I was using AIX - ksh shell , and inorder to debug shell script I used set -vx to echo all the commands which are being executed.
Can anybody tell me the corresponding method in HP-UX - in tcsh shell.
Regards
Shihab (1 Reply)
Hello all,
I am trying to run a script and have not had much success running it...ne help debugging it will be appreciated..The ftp script alone works but not within the while loop.
below is the script
#!/usr/bin/ksh
destination_server=servename
destination_user_id=un... (1 Reply)
Hi all,
Am working on a script to understand the flow control of it..
Since i am from a C background i looking out for an easy way to analyze the script as it runs ..
In C/C++ we have F7 that starts execution from main() and proceeds accordingly..
I was wondering if there is a same approach... (2 Replies)
Hi all,
I searched to find out a few cp scripts that had progress bar, but did not compromise on performance, when my efforts were in vain i went ahead and wrote one of my own ,taking i/p frm other scripts...
But this is causing some errors and am unable to debug it.....pls help
Here is the... (1 Reply)
is there any way you can add a breakpoint in a script so you can stop on it?
i have used -xv in my shebang but the script just runs and i want it to stop at a specific point in the script.
appreciate any help. (1 Reply)
Hello, Some one asked me in the inteview.... The question is,
How do we debug the schell script before even running..... Interviewer
told me one clue... There is SET command to accomplish this... Can any
one tell me what kind of set commands.... Thanks. (2 Replies)
Newbie question. I cannot get "set -n" or "set -noexec on" to work on Linux or AIX! According to the man page and what I read online, it should inform me of syntax errors without executing commands in your script.
So, can someone PLEASE explain why this does not work?
... (2 Replies)
hi all
only the weirdest thing happened with me just now. I was debugging a shell script and I found that a step that was supposed to execute later was getting executed prior to another step for no reason. You know any ?
i mean have a look at the following command-
here it tries to grep... (7 Replies)
Discussion started by: leghorn
7 Replies
LEARN ABOUT OPENSOLARIS
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)