Hello All,
I have a script that will email out if the email address is specified as parameter 1.
I am using ksh, and then tried the following :
email=$1
Following did not work, I am getting error
test -z $email
test ${email:=" ") -eq " "
test -n $email
test ${?email}
What... (4 Replies)
Hi all,
to check that a variable is not empty, I usually do:
if ; then...
or
if ; then...
what if I have a serie of variables and want to do the same test on all of them. How to do this in a single if statement?
thank you (1 Reply)
hi to all,
i want to check the value of a variable that it contains characters.
for example i try the following:
if then .........
i just want to check that in the specific line that is a variable called "passline" has the entry "password". But it can contain also other characters in the... (4 Replies)
I have seen many posts for this sort of problem but I just did not know how to use it for my issue. A number is assigned to a variable and I wanted to check if it is a zero or non zero.
Example of my numbers are below:
000000000000000000000000000000000000000000000000... (8 Replies)
#!/bin/sh
echo "Running Script to capture ORACLE Erros"
# Change Directory to the actual logs path
cd /home/nv8510/lognew
err_var=`grep -in "ORA-" *`
if then
echo "THESE ARE THE ORACLE ERROR OCCURED"
echo "$err_var"
echo... (7 Replies)
I have a script /root/asas with following contents.
#!/bin/bash
ha=`cat /etc/passwd | grep sandra`
if ; then
echo "Sandra is in /etc/passwd"
echo "variable ha is $ha"
else
echo "Sandra is NOT in /etc/passwd"
echo "variable ha is $ha"
fi
What... (3 Replies)
hi,
i want to check whether a a variable contains some value or is empty in a shell script. so if the variable contains some value i want to do some job and if the variable doesnt contain any value then i need to skip that job.
here is a sample script
read_filenames.sh contains
... (5 Replies)
Hi people,
I would like to start a review of my config variable to check whether they have been changed and if not then there is only an echo. If they have been changed to my other commands are executed.
I hope you can help me.
with best regards
JPad
edit:
here my code
if ;... (8 Replies)
Discussion started by: JPad
8 Replies
LEARN ABOUT OPENDARWIN
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)