04-16-2003
Concatenating Variables
FILE_DATE=$(date +"%Y%m%d_%H%M")_
FILE_PREFIX=${FILE_DATE}
echo $FILE_PREFIX
JS_LOG_DIR="E:\DecisionStream Jobs\Invoice Balance Fact Jobs"
echo $JS_LOG_DIR
--This is where the problem surfaces. The last line of this script does a rsh to an NT machine and one of the parameters is the variable $LOG_FILE_NM. I am attempting to pass an NT folder name to my NT job. However getting the backslash to work at the end of the variable JS_LOG_DIR is not easy! If I put a space after the backslash, it works - but I don't want a space after it.
LOG_FILE_NM="${JS_LOG_DIR}\${FILE_PREFIX}JS_FACT_INVOICE_BALANCES.log"
echo $LOG_FILE_NM
Here's the results:
20030416_1633_
E:\DecisionStream Jobs\Invoice Balance Fact Jobs
E:\DecisionStream Jobs\Invoice Balance Fact Jobs${FILE_PREFIX}JS_FACT_INVOICE_BALANCES.log
I need for this to look like:
E:\DecisionStream Jobs\Invoice Balance Fact Jobs\20030416_1633_JS_FACT_INVOICE_BALANCES.log
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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)