I have the following situation
============
export DirectoryName=/tmp/xyz
if ; then
some_new_env=$DirectoryName"/*"
=======================
I tried all the ways of escaping the '*', but still the shell seems to expand the '*' character. I want some_new_env to contain "/tmp/xyz/*"
... (7 Replies)
Hi
just for regular use i m working on small module written in perl for getting date in specified format like i have to specify date format and then seperator to seperate date i am 95% done. now i m sure explanation i gave is not good enough so i am putting output here :
C:\Documents and... (2 Replies)
I want to append the following line to /var/spool/cron/root:
*/7 * * * * /root/'Linux CPU (EDF).sh' > /dev/null 2>&1
How to accomplish this using echo?
---------- Post updated at 04:09 PM ---------- Previous update was at 04:07 PM ----------
"Linux CPU (EDF)" is actually stored in a... (11 Replies)
Hi,
I have pipe delimited file in which some of the description fields can have commas. e.g.
1|123|abc,def
2|456|qwert
3|345|aty,try,rty
I need to convert this to a 'csv' file BUT i need to add \ before every comma present in the description values (so that my next program can read it as... (3 Replies)
Hello
This should be easy, but bash is giving me headaches.
At the command line the following command works:
duplicity --include /home --exclude '**' / file:///foo
Doing that from a script is not straightforward. Note that it is basically a requirement that I place the... (3 Replies)
Hi
I use :
path=/var/www/admin
echo "$path" | sed -e 's/\//\\\//g'
this return
\/var\/www\/admin
and is ok.
but
path2=`echo "$path" | sed -e 's/\//\\\//g'`
echo $path2
return an error:
sed: -e expression #1, char 9: unknown option to `s'
Can anyone help me?
Thanks (3 Replies)
So I understand that I should be able to ouput a literal \ by escaping it with a preceding \. My problem is that I am trying to ouput a script that will subsequently be run on a different system with UNC pathing, so I want to ouput two \\ in a row, but escaping them both in sequential order is not... (4 Replies)
Discussion started by: JourneyRider
4 Replies
LEARN ABOUT X11R4
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)