06-02-2005
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi all, I'm a newbie to the Linux world and I got a couple of shell script questions:
(1) How do combine two variables and make it equal to a third variable? For example, I got a variable $A=FirstName, $B=LastName, and I want to combine the variable into one variable so when you echo the final... (4 Replies)
Discussion started by: mikey20
4 Replies
2. Shell Programming and Scripting
can any help how to remove blank spaces in a string?
STR="GOOD BYE"
by removing blank spaces, the string should be GOOD,BYE
thanks in advance (2 Replies)
Discussion started by: spandu
2 Replies
3. Shell Programming and Scripting
Hello and thx for reading this
I'm using sed to remove only the leading spaces in a file
bash-280R# cat foofile
some text
some text
some text
some text
some text
bash-280R#
bash-280R# sed 's/^ *//' foofile > foofile.use
bash-280R# cat foofile.use
some text
some text
some text... (6 Replies)
Discussion started by: laser
6 Replies
4. Shell Programming and Scripting
seems easy but havent found in other posts...
i want to delete any spaces if found before first occurence of ${AI_RUN}
sed 's/ *\\$\\{AI_RUN\\}/\\$\\{AI_RUN\\}/' $HOME/temp1.dat
i think i'm close but can't put my finger on it. :rolleyes: (6 Replies)
Discussion started by: danmauer
6 Replies
5. Shell Programming and Scripting
Hi,
I have a string like this and i want to remove extra spaces that exists between the words.
Here is the sentence.
$string="The small DNA genome of hepadnaviruses is replicated by reverse transcription via an RNA intermediate. This RNA "pregenome" contains ... (2 Replies)
Discussion started by: vanitham
2 Replies
6. Shell Programming and Scripting
Hi,
i call my shell like:
my_shell "my project name"
my script:
#!/bin/bash -vx
projectname=$1
sed s/'PROJECT_NAME ='/'PROJECT_NAME = '$projectname/ <test_config_doxy >temp
cp temp test_config_doxy
the following error occurres:
sed s/'PROJECT_NAME ... (2 Replies)
Discussion started by: vivelafete
2 Replies
7. Shell Programming and Scripting
Hi,
I am trying to remove spaces from the beginning of a string (which i am using in my shell script). For ex - my string looks like this -
" no rows selected"
and i want the string to look like this -
"no rows selected"
How can i achieve this?
Thanks! (18 Replies)
Discussion started by: shrutihardas
18 Replies
8. Shell Programming and Scripting
if the answer is obvious, sorry, I'm new here.
anyway, I'm using tr to encrypt with rot-13:
echo `cat $script | tr 'a-zA-Z' 'n-za-mN-ZA-M'` > $script
it works, but it removes any consecutive spaces so that there is just one space between words. I've had this problem before while using sed to... (5 Replies)
Discussion started by: Trichopterus
5 Replies
9. Shell Programming and Scripting
Hi all,
i am getting count from oracle 11g by spooling it to a file.
Now there are some newline characters and blank spaces i need to remove these.
pl provide me a awk/sed solution.
the spooled file is attached.
i tried this.. but not getting req o/p (6 Replies)
Discussion started by: rishav
6 Replies
10. Shell Programming and Scripting
The following command works echo "some text with spaces" | sh -c 'sed -e 's/t//g''But this doesn't and should echo "some text with spaces" | sh -c 'sed -e 's/ //g''Any ideas? (3 Replies)
Discussion started by: Tribe
3 Replies
LEARN ABOUT DEBIAN
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)