Hi guys !!
well i'm still new in learning UNIX , and actually i'm still studying it by myself ..
anyway, some people told me the Bourne-again shell is a good version of UNIX to work on , and i tried to download yesterday but i didn't know how to start it ...... the ReadMe file associated with... (3 Replies)
Hi,
I have a script that uses "nohup" command to execute a korn shell script. Which one is the correct shell to use bourne shell or korn shell to execute a korn shell? and why?
Thanks in advanced. (2 Replies)
I have a program (say, MyProgram) written in Bourne-shell script, but at some point it calls another script written in pearl, as illustrated below:
#!/bin/sh
.....
case $x in
1) ConfigSystem1 ( b-shell script)
2) ConfigSystem2 ( pl)
3) ConfigSystem3 (b-shell)
....
Then I create... (0 Replies)
Dear friends...
Kindly if any one can help me to know the differences in definning & retreiving data from arrays in the sh,csh & ksh.
I always facing problems in this issue.
thanks...:)
BR (3 Replies)
I do not claim to be an expert, but I have done things with scripts that whole teams of folks have said can not be done. Of course they should have said we do not have the intestinal fortitude to git-r-done.
I have been using UNIX actually HPUX since 1992. Unfortunately my old computer died and... (7 Replies)
Hi All
I have writing a Korn Shell script to execute it on many of our servers. But some servers don't have Korn Shell installed, they use Borne Shell.
Some operations like calculation don't work :
cat ${file1} | tail -$((${num1}-${num2})) > ${file2}
Is it possible to activate Korn Shell... (3 Replies)
Exercise Five
Write a Bourne shell script which:
• Professionalism: plan for this from the start.
• Has one command line argument.
• If the command line argument is a directory then the script should output the number of
files in the directory.
• If the command line argument is an ordinary... (2 Replies)
Could some one tell me the difference btw Bourne shell and the Kshell? Which is more flexible and reliable in terms of portability and efficiency. When i type the following command ..
$ echo $SHELL
yields me
/bin/sh
Does this tells me that I am in Bourne shell. If yes, how can i get... (6 Replies)
A severe vulnerability was discovered in Bourne shell.
Just google for: bash vulnerability
... for more details. (5 Replies)
Discussion started by: Cochise
5 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)