HI All,
Suddenly don't know what happened to redhat linux 7.2 any program start then itsn't listing while using ps -ef
ex: ./xyz this xyz program pid not showing in ps-ef
Pls let me know what is the reason for the same.
Thanks a lot in advance
Bache (7 Replies)
Hi,
I have a shell scripting. This will take 7 digit number in each line and add 7 digit number with next subsequent lines ( normal addition ).
Eg:
0000001
0000220
0001235
0000022
0000023
...........
.........
........
Like this i am having around 1500000 records. After adding... (23 Replies)
Hi all,
I am very new to shell scripting.I have the requirement like
one program is there, if it is running leave like that only and if it is stopped it has to be restart and once again keep watching and it is stopped we a have to restart once agian.I want a shell script for this.Please help me... (10 Replies)
In LINUX(CentOS, RedHat) is there a way to have the banner statement appear before the logon instead of after the logon? In UNIX and Windows the banner appears before a person actually logs on, what I'm seeing in LINUX is that it appears after the login(ftp, telnet, SSH).
Thanks (0 Replies)
hi ,
I have a Solaris server which is part of a domain. The IP for this Solaris box is allocated dyanamically by a DHCP. Everytime the solaris box is restarted the IP gets changed. Being an admin what should i do to find the new ip of the Solaris server sitting at my location? Till now i get... (2 Replies)
I want to copy large amount of files aproximately more than 20,000 files from one file system to another file system, but it gives me error like:
#cd /opt/appserver/images
#cp * /opt/appserver02/public/images
Argument list is too long
Also above mention error appear again when i run:
... (1 Reply)
Hello everyone, I'm in need of some assistance. I'm currently enrolled in an introductory UNIX shell programming course and, well halfway through the semester, we are receiving our first actual assignment. I've somewhat realized now that I've fallen behind, and I'm working to get caught up, but for... (1 Reply)
Hi All,
I am using the below script which has awk command, but it is not returing the expected result. can some pls help me to correct the command.
The below script sample.ksh should give the result if the value of last 4 digits in the variable NM matches with the variable value DAT. The... (7 Replies)
Hi All,
I have a small queries to get the character count
i tried with wc -c and wc -m but its not returend current result
For eg:
wc -c
wc -m
echo "Name" | wc -c
result: 5 but actually it should returned 4
Help me on this to ge the correct one.
Thanks!
----------... (4 Replies)
Discussion started by: siva.pitchai
4 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)