I need to read a line from a file and strip the characters from it and compare the stripped value with the value I pass to the script while executing it. Below is the code for the same. But when i execute the code, it is throwing an error.
Below is the data from i_groups.txt
When I execute the script, it is giving the below error:
Please shed some light on this.
i have got a file where the env command is appended 5 times. i have to now look for the username and display it in the form of
1) PWD=/home/lee.ballancore
2) USER=lee.ballancore
3) MAIL=/var/spool/mail/lee.ballancore
4) LOGNAME=lee.ballancore
5) HOME=/home/lee.ballancore
6)... (1 Reply)
How do I test the return condition in the script if no files are found:
for file in `Find ${LANDING_FILE_DIR}${BTIME_FILENAME_PATTERN}`
do
...
..
done
I want to capture the return code so I can echo the error or condition. Using if ] always returns zero no matter where it's placed.
... (4 Replies)
i have the equation like below
07:35:07 ( AB : 2319f.ab * 22) + ( AB : 2320f.ab * 22.03 ) + ( AB :2321f.ab * 22.07 ) ...... N
i want put ":" as a delimiter and break the equation like below
2319f.ab * 22
2320f.ab *22.03
2321f.ab * 22.07
.
.
N
i know the number of... (1 Reply)
Hi,
I am facing issues with test condition. I had a compound condition to write for both if and while,
In one of the texts i referred, with a korn shell we can write compound statements like: ], however this doesn't worked for me. For example:
if ] doesn't works, but
if || worked.
... (1 Reply)
hi all,
i have a problem...no dream :-)
i want to scan a file i use the loop famous
while read line
do
do < myfile
but this scan must finish when find the another string .
How can i do it?
best regards for all.
Francesco
Please use descriptive subjects. "script." doesn't tell... (5 Replies)
hello,
I would like to do exit at the end ie list all errors before exiting
How to put the token exit in a variable with a loop ?
Thanks
function g1 () {
case "$1" in
(-0-0 | -0-1 | -0-2 | -0-3 | -1-0 | -1-1 | -1-2 | -1-3)
# nothing, OK !
;;
(*)
echo 'Fatal, $1 = '"'$1'"', Date... (9 Replies)
Hi,
I was trying to write a shell script which reads csv file and sends mail in html format along with tables. Hope i have completed 1st part , but while sending mail i was trying to highlight some rows in the table based on the egrep outcome. If the string exists in line/INPUT, i am trying to... (4 Replies)
Hi,
I Have to check two condition in while loop every 2 minutes. while loop is accompanied with number of times it will check.Please help in putting the two condition in while loop as appropriate.
z= input value,
A=1
while
do
1.check the file output,if the file output is N then keep on... (2 Replies)
hi.,
As we know that using for-loop or while condition, we can only process one by one sequentially, but , lets say this example :
1. under the folder "logs" there are 1000 files
2. each file has one record or line
3. have to perform atleast 7 queries per 3 seconds ,for instance
... (3 Replies)
Discussion started by: alnhk
3 Replies
LEARN ABOUT CENTOS
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)