You do not go wrong anywhere, but if $line2 contains abc^Mdef^Mghi^M then if you print the variable on your terminal the only thing visible is ghi, because of the CR characters, which move the cursor to the beginning of the line..
Try using set -x or redirecting the variable to a file and you'll see they are there...
--
It is better not to use for line in `cat afile.txt`. Consider using:
using c-shell, does anyone know how to send control characters to the printer before the job?
I need to set a printer to print in condensed mode
HELP (1 Reply)
Hi,
When I do a man and save it into a file, I end up getting a lot of control characters. How can I remove them??
I tried this:
/1,$ s/^H//g
But I get an error saying "no previous regular expression".
Can someone help me with this.
Thanks,
Aravind (5 Replies)
Hi,
Can anyone help me with controlling the cursor position from a shell script. Things like moving left,right,up,down etc
Anyone have any ideas? (2 Replies)
Hi.
I´ve a question to a running script:
i=0 #fill an Array with all files in a folder ending with .sys
for Par in *.sys ; do
Par2="$Par" ;
i=$((i... (1 Reply)
Can somebody please help me with the query. ?
I want a part of program of which should look for control characters in the flat file , when it finds it, displaying message that Control Characters found..!
Please help me (1 Reply)
Can somebody please help me with the query. ?
I want a part of program of which should look for control characters in the flat file , when it finds it, displaying message that Control Characters found..!
Please help me (13 Replies)
sed -e "s// /g" old.txt > new.txt
While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped... (11 Replies)
Hi,
My files are showing some control characters in vi editor
^M
^@ and somtimes
^H
I removed ^M with %s/^M//g command
but how to represent ^@ and ^H
e.g. for ^M it is hold ctrl then v and m..
Please help..
I am very new to unix.. (7 Replies)
Hallo Team,
I am trying to get rid of the dollar sign. I managed to remove all the other special characters but i am struggling with this one.
-bash-3.2$ cat -e missing_revenue_20141112.csv|less|head
BW0522168531211141180935668@196.23.110.141$
BW092218784121114-370120610@196.23.110.141$... (4 Replies)
Discussion started by: kekanap
4 Replies
LEARN ABOUT V7
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)