Well you should consider dos2unix (may br dos2ux on your box) to clean up windows carriage returns. It was meant to do that. And has error handling.
Otherwise, you have to do error handling inside the perl script itself.
You can add external checks:
Note: consider forming TR_TMP_$4 as TR_TMP_${4} It is two more keystrokes but if you do it consistently it will save ambiguity in reading code, and has helped me catch mistakes lots faster. YMMV.
Last edited by jim mcnamara; 08-31-2011 at 01:00 PM..
Guys,
I'm doing signal handling in Perl. I'm trying to catch ^C signal inside the script.
There two scripts : one shell script and one perl script.
The shell script calls the perl script.
For e.g. shell script a.sh and perl scipt sig.pl.
Shell script a.sh looks something like this :... (6 Replies)
Hi there,
I'm newby in perl and XML. I can read and parse Xml with XML-Node upper XML::Parser, but how can I create XML tags and pack my individual data in it then send through socket. PLZ lead me :)
Thanks in Advance. (1 Reply)
Hi,
Here is my piece of code--
sub per_user_qna_detail
{
for($index=0;$index<@records;$index++)
{
if($records =~ m/^(.*)\s*Morocco.*Entering\s*Module::authenticate/)
{
printf "INSIDE per_user_qna_detail on LINE NO $index\n";
$Time_Stamp = $1;... (0 Replies)
Hello all,
I have created a Perl script that tries to open connections to various systems on different ports in order to see if the machines are reachable, the ports are open, etc.
There appears to be a difference between Solaris (10) and Linux (RH/Oracle and Ubuntu) in the status or error it... (4 Replies)
Hi All,
I'm pretty new to the forum and also to UNIX. I have a requirement for which I need some help. I have a script (example.script) where I get user inputs using the read command. I would need to pass the read-fetched input to a perl command (explained below) in my script. The part which... (3 Replies)
I can get this working, but if something is down I get an error and the script does not move on. I can not get the "else" function working. What might I be doing wrong?
use SNMP::Simple
my %ios = ();
$list="list.list";
open(DAT, $list) || die("Can't Open List");
@raw_data=<DAT>;... (4 Replies)
$# some text
$$ some text
$@ some text
$$. some text
Mg1 some text
Mg2 some text
.
.
.
Mg10 some text
The above 10 lines are to be extracted except the lines starting from $#,$$.,... (4 Replies)
Hi
Am making connection to oracle using ISQL as shown in the code.
This code is just a minor part of a big code.
I want to capture the error if the password/login is wrong or if connection is not made.
I need to capture the error code also.
Also, If such an error occurs, i need to exit out... (4 Replies)
Hi,
I am reading and file and writting each word to other file.
where I have used array to store the data.
I am getting below error as
"Use of uninitialized value in concatenation (.) or string at customize_split_raw.pl line 51, <IN_FILE> "
Where my line 51 code is
50 foreach... (8 Replies)
Hi,
I have a perl script which is just reading from the file but what I would like to understand is how the counter is moving without using the loop in the script.
Below are the details:
$ more /tmp/abc.txt
This is 0
This is 1
This is 2
This is 3
This is 4
This is 5
This is 6
This... (2 Replies)
Discussion started by: siddharthjindal
2 Replies
LEARN ABOUT ULTRIX
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)