Hi all,
I am struck with syntax for long time,
Need to purge some lines from given file
Not able to use value of $x
Example of ksh script...
Facing some syntax issue.
Have Tried ‘with single , double ,backtick “” ` and \ escape character , doesn't seem to work.
<line 1> echo $x #... (2 Replies)
Hello All,
I'm tryying to concatenate string and variables value in ksh, but i'm unable to do it, can someone please help in rectifying my error,
here is the code i have written,
#!/usr/bin/ksh -x
cat $1 | while read fileline
do
val1= echo $fileline | awk -F, '{print $1}'
val2= echo... (3 Replies)
Hi all,
I have a KSH script which is kicking off an sql scripts as follows:
/usr/local/installs/instantclient_10_2/sqlplus -s username/password @$sql_path/sql_query.sql > $tmp_path/sql_query_results
The problem I have is that sometimes the 10g Oracle Database spits out an error saying... (4 Replies)
am running the small script below.
count_a=48
count_b=48
if ; then
echo "Count matched"
else
echo "count not matched"
fi
I got the below output.
/bin/ksh: [48: not found
count not matched
It was giving the same error when I ran in another box. But I inculded /bin/ksh in the... (10 Replies)
First time post. I did a search so I didn’t see this specific issue. It seems to be a head scratcher for me.
I have an hourly job that on rare occasions, gets into an endless loop.
I’ve tried different scenarios but the current version does basically the following.
Find all the *.arc files and... (18 Replies)
Hi,
Can any body please tell me what does -z do in ksh?
I need to understand what does below code do?
FILE_LIST is an array which store multiple number of files...
if } ]]; then
echo "EVDO file not found
fi
I hope I'm clear on my query (3 Replies)
Hi guru,
I'm making crazy cause an issue on a ksh shell I made.
In this shell I want to execute unix command on a remote machine using an ssh connection like ssh user@host 'command'.....
The command is very simply, is an ls on a remote directory but it give me an unexpected result.
The... (4 Replies)
Hello,
I have used a chunk of ksh script similar to this in many places without any issue:
while :
do
print;
read OPTION?"Enter a number (q to quit): "
expr ${OPTION} + 1 >/dev/null 2>&1
CHECKVAL=$?
if }" != ${OPTION} ]; then
... (2 Replies)
Hi. I wrote the following case statement to replace a series of 'ELIF' statements as it looks better and is easier to maintain. However, for some reason the commands don't fully work in this format. Take option 1. It should call a script that runs in the background but it doesn't work. Can anyone... (3 Replies)
Discussion started by: user052009
3 Replies
LEARN ABOUT CENTOS
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)