10 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
This is my question, below the question is the template
Write and execute a Bourne shell script called homework that will
From within the script, create three background processes:
a) (2 points) one that saves a long listing of your hidden files to a file named hiddenlist
b) (2 points) ... (4 Replies)
Discussion started by: luislozoya
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2. Shell Programming and Scripting
I admit I am terrible with scripting, so when I was asked to store users' command history lines and zip them on monthly basis what I did was to create a file "user_history_Feb" with the following contents:
Part A
# more user_history_Feb
cp -p /var/log/user_history/*history... (6 Replies)
Discussion started by: hedkandi
6 Replies
3. Red Hat
Hi, I need to log the activity of my SFTP (RHEL 5.4).
I have this in /etc/sshd/sshd_config:
Subsystem sftp /usr/libexec/openssh/sftp-server -f LOCAL5 -l VERBOSE
And this in /etc/syslog.conf:
LOCAL5.* /var/log/sftp.log
When I log in... (1 Reply)
Discussion started by: Tr0cken
1 Replies
4. Shell Programming and Scripting
Attempting to write a script to eventually notify me via email for when there is packetloss across the backbone. I am looking for values greater than 0% in the mtr field.
#!/bin/sh
target=www.google.com
date +"%D"_"%T" >> /home/rich/mtr.log
echo "----------------------------------------" >>... (1 Reply)
Discussion started by: closedown
1 Replies
5. Shell Programming and Scripting
Hi,
I want to login using different login credentials from with in the shell script.
I need to do this so that I can run a second script which can be run using only by that user.
eg.
#!/bin/bash
#login using new user
username:
password:
sh script.bash
#logout above... (2 Replies)
Discussion started by: shishirkotkar
2 Replies
6. Shell Programming and Scripting
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)
Discussion started by: bluemoon1
0 Replies
7. Shell Programming and Scripting
Dear Bourne Shell Expert,
I am trying to change the current working directory from within a Bourne Shell script. Simply enough i thought !
As I am sure you are well aware, Inside the script i echo `pwd` and it seems ok, but the shell spawns another shell to execute this and as such, when my... (10 Replies)
Discussion started by: fawqati
10 Replies
8. UNIX for Dummies Questions & Answers
Hello,
I'm throwing this out there as a novice to the Unix world...I've
been working on a project that requires me to ouput (using the echo command) a list of names in a single column format, but the problem is the input is in row format followed by a blank space...If anyone could give me a... (2 Replies)
Discussion started by: dmhonor914
2 Replies
9. Shell Programming and Scripting
Hi all,
Can somebody answer the following query
Thanks,
Srinivas
A shell program that takes one or any number of file directory names as input; sorts the directories given as parameters jointly in the ascending or decending order of choice For EX : dips abc etc desc will sort the files... (2 Replies)
Discussion started by: psrinivas
2 Replies
10. UNIX for Advanced & Expert Users
i have this assignment.. and i mad this script but there is something wrong with it.. if anyone can tell me.. watz going on... i would appreciate it.. tHnX in advance..
count=1
val=$2
op=$1
ans=0
if
then
if
then
while
do
... (7 Replies)
Discussion started by: dezithug
7 Replies
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)
