It's much more efficient to run tput and store it's output in a variable rather than re-running it each time you need an escape character.
Why not loop thru the 4 chars in a for loop
If you have /proc it's much more efficient to test from /proc/$PID directory rather than running ps:
consider the given prg.
main() {
.....
function1(); /* to write into a file or log */
printf(" ");
.....
}
when the control reaches function1(), it should get executed in the
background.At the same time main's printf(" ") statement should also get executed.i.e... (5 Replies)
Dear all,
I'm writing a KornShell script that calls inside it a function in background mode
#!/bin/ksh
function myfunction
{ . . .}
myfunction |&
. . .
How can I capture the PID of the function myfunction that runs in background?
Thanks in advance
:) (2 Replies)
I'm writing a PHP script which will take a given media file and convert it into a flash (flv) file. In addition to this, once the flv file has been generated I create two thumbnails (of different sizes) from the newly generated flv file.
In order to do this I'm calling ffmpeg from the command... (4 Replies)
hello all,
In my script i have written some messages which should come in screen while some background process is going on..
Like for example:
if i want to add 2 numbers a and b ...when the addition is going on in the background i should get "ADDING TWO NUMBERS>>PLEASE WAIT " message on... (3 Replies)
Guys
I'm working to make in AIX script and I have some commands need to be excited by that script
Like the below commands ...
startsrc -s sshd
I want that executing to be in the background of the system I do not like to see the out put of that (3 Replies)
Hi All,
I have an issue where in when i execute a script in the background using '&', it exits with stopped(SIGTTOU) signal.
There are two servers, where the Compute server is HP-Unix and Data server is Linux.
I tried using the "stty - tostop" command to disable the SIGTTOU for background... (1 Reply)
Here is some back ground on the script. The script is to poll an arbitrary number of DB's. To do this I am creating a function that takes the file_path to the DB and the min poll interval as arguments. The function will be called for each DB and then ran in the background. The function I was... (6 Replies)
Greetings, i've been working with a user-friendly menu on ksh to allow users execute scripts located on a remote server, so they wont have to login and manually launch those scripts every single time.
This is a HP-UX box and currently on a /usr/bin/ksh shell.
I've setup ssh keys on both... (1 Reply)
Hi,
I am having script which contains many functions. Need to print each function name at the starting of the function. Like below,
functionname()
{
echo "functionname"
commands....
}
I've tried like below,
func=`grep "()" scriptname | cut -d "(" -f1`
for i in $func
do
nawk -v... (4 Replies)
Discussion started by: Sumanthsv
4 Replies
LEARN ABOUT MOJAVE
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)