07-22-2007
simple unix script help
when i run this script:
# Author: xtos
if [ "$#" -ne 1 ]
then
echo "Please enter ONLY one name to search, (example "$0" NAME)"
exit
fi
INPUT="grep $1 $HOME/work/phone_book"
if [ $INPUT !="$1" ]
then
echo "Listing not found, please try again."
else
NAME=" `$INPUT | cut -f1 -d":"` "
PHONE=" `$INPUT | cut -f2 -d":"` "
echo $NAME
echo $PHONE
fi
i get this when the argument is right:
$ phone work
./phone: line 11: [: too many arguments
work
(312) 675-3321
why do i get too many arguments??
and when the argument is wrong i am supposed to get this :
"Listing not found, please try again."
but i dont, and instead i get this :
$ phone wooork
./phone: line 11: [: too many arguments
line 11 is :
if [ $INPUT !="$1" ]
what am i doing wrong?? any help would be much appreciated
thanks
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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)