05-01-2008
du from list with du of list total
Hi there
i am relatively new to shell scripting and am stuck. I wrote (and borrowed parts of) a script that will read input from a text file and echo the file name and then give me the du of that file right underneath it in a nice clean way only after telling me the number files on which it will perform these actions. I would like it to also give me the combined du of all of the files in the list. Does anybody know how to do this?
here is my script:
#!/bin/bash
if [ ! $1 ]; then
echo missing arguments\(s\)
echo du-from-list.sh \<works-list\>
exit 1
fi
WORKLIST=$1
WORKSIZE=$du -hs /Volumes/image/$line
echo Total Number of Works
cat /Users/tbrc/scripts/ctc/lists/O1.txt | wc -l
sleep 5
exec 3<&0
exec 0<$WORKLIST
while read line
do
echo $line
du -hs /Volumes/image/$line | awk -F/ '{print $1}'
done
exec 0<&3
exit 0
Ideally i could something like
echo "total du"
and then the command
any help helps.
Thanks,
Movomito
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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)