10-06-2005
how to do in sh shell
Hi,
I am attaching my shell script here then I will put my doubt:
#!/bin/sh
errorexit ()
{
echo Error : $*
echo
}
stval=`cut -d, -f1 ./dir.conf`
for dir in $stval
do
echo " this is $dir"
if [ ! -d "$dir" ]
then
errorexit "$dir" does not exist
fi
if [ ! -x "$dir" ]
then
errorexit "$dir" cannot be accessed
fi
if [ ! -r "$dir" ]
then
errorexit no read permission in $dir
fi
if [ ! -w "$dir" ]
then
errorexit no write permission in $dir
fi
done
the dir.conf is a file which contains the name of directories. I got the directories name and stored it in dir variable. Now I test the different permissions by using if conditions for each directory using for loop.Let say if [ ! -d "$dir" ] is true then it will give some error message. now I face problem like the succesding if statements also executed. Here I cant use exit or break command because it comes out of program. goto command is not understood by sh shell. now my obejective is if any if condtion is true for any directory, it shoul dgive some error message and it should check for another directory which are stored in dir variable. So please help me if any one know. if any more infrmation need then please ask me.
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LEARN ABOUT OPENSOLARIS
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)