Without knowing what Shell you have, this is difficult!
In "csh" your statement works. Therefore we assume it is not "csh".
In Bourne-type shells (sh, ksh, bash etc.) it should be a syntax error. The "set" command is for setting shell parameters. The "typeset" command may be what you meant but for this simple example we just assign the variable. Note that there are no spaces either side of the equals sign.
I need to schedule a shell script that runs at the command prompt to run with crontab. When I run this at the command prompt as follows it works:
echo /usr/test/script.sh date1 date2 y | at 20:00
But if I will pass these argument (date1, date2, Y) with in a shell script (say scr1.sh) and... (7 Replies)
Im trying to make a script that prints 2 messages to a screen session, one after the other.
screen -x session44 -X stuff "`printf "Test 1\r"`"
This works fine, but adding a second lien with a different message yields no results.
Changed Subject: Please Follow Forum Rules Regarding... (1 Reply)
Hi all,
I have a script from a programmer, for which I need to analyze a problem.
The script gathers audit info and prints out the results. Two different departments use it, on two different printers. In the script department the there are no issues. In the other department the same script... (10 Replies)
I want to make a script that check for the argument passed to it and generates an error in case any character/string argument passed to it.
I am using below code, but its not working. can anyone help.
#!/bin/bash
if ]; then
echo 'An integer argument is passed to the script hence... (3 Replies)
Hi All,
Am trying script to compare 2 files and print the difference found from old file to new file on line by line basis on side by side display.
Basically line by line comparision and files may contain blank line as well
I know we have compare/diff commands but i don't how to make... (10 Replies)
I am connecting to a device using telnet, I want my script to perform certain commands : ie- show device , show inventory..etc and write the output it sees from the terminal to a file.
this is what I have got :
#!/usr/bin/expect --
set running 1
spawn telnet <ip address>
expect ... (1 Reply)
greetings,
i'm a php and html novice and i figured i'd learn by diving in. i've written a php script that i've placed in the /var/www/html directory. it's supposed to give some relative info about the system when you point a browser at it. if i run the script using "php -q index.php" all the... (3 Replies)
Discussion started by: crimso
3 Replies
LEARN ABOUT FREEBSD
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)