On Wed, 16 Dec 2009, Rogan Creswick wrote:
> It also doesn't *really* matter that they are, though. If you should try
> to run a pdf as a script, you'll just get some error, or nothing at all.
> (shell vs. a double-click in some file browser.
Here's a script John can use to explore his home directory (as well as
others). It is from chapter 5 of the ORA book on the bash shell. I call it
'showme.sh'. RUn it by making it executable ('chmod a+x') and specifying all
files in the directory. For example, ./showme.sh *
------------------------------------------------------------------------
#!/bin/bash
finfo ()
{
if [ ! -e "$1" ]; then
print "file $1 does not exist."
exit 1
fi
if [ -d "$1" ]; then
echo -n "$1 is a directory that you may "
if [ ! -x "$1" ]; then
echo -n-n "not "
fi
echo "search."
elif [ -f "$1" ]; then
echo "$1 is a regular file."
else
echo "$1 is a special type of file."
fi
if [ -O "$1" ]; then
echo 'You own the file.'
else
echo 'You do not own the file.'
fi
if [ -r "$1" ]; then
echo 'You have read permissions on the file.'
fi
if [ -w "$1" ]; then
echo 'You have write permissions on the file.'
fi
if [ -x "$1" ]; then
echo 'You have execute permissions on this file.'
fi
}
for filename in "$@" ; do
finfo "$filename"
echo
done
--------------------------------------------------------------
Two lessons in one: permissions and shell scripting.
Rich
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