topic Re: script question - if file exists in Operating System - HP-UX

script question - if file exists

Jim Mickens — Tue, 19 Feb 2002 16:16:35 GMT

Is there any way in a shell script to check for the existence of a specific file?

Re: script question - if file exists

Steven Sim Kok Leong — Tue, 19 Feb 2002 16:18:41 GMT

Hi,

Use the -e flag.

#!/sbin/sh
if [ -e $file ]
then
echo $file exists
else
echo $file does not exist
fi

Hope this helps. Regards.

Steven Sim Kok Leong

Re: script question - if file exists

A. Clay Stephenson — Tue, 19 Feb 2002 16:19:02 GMT

Sure:

if [ -r ${FNAME} ]
then
echo "File ${FNAME} exists"
else
echo "File ${FNAME} not found"
fi

man test for details.

Re: script question - if file exists

Bill McNAMARA_1 — Tue, 19 Feb 2002 16:21:04 GMT

in a while:

while [ -f /tmp/file ] ;do
.
.
.
done

Later,
Bill

Re: script question - if file exists

Jim Mickens — Tue, 19 Feb 2002 16:21:50 GMT

Thanks to all. I had a user ask me, and since I'd never tried it before, I had no idea. I'll forward this info to him.

Re: script question - if file exists

Craig Rants — Tue, 19 Feb 2002 16:22:13 GMT

If you have the Unix In A Nutshell book, look at the page on test, it will give you about 20 different tests that you can use such as -f for file -x for executable file ...

But -f should work for what you asked.

GL,
C

Re: script question - if file exists

Helen French — Tue, 19 Feb 2002 16:22:17 GMT

Hi,

Check the attachment for all available condtional expressions.

HTH,
Shiju

Re: script question - if file exists

Mark Greene_1 — Tue, 19 Feb 2002 16:22:36 GMT

use the test flags:

-e = exists
-f = plain file
-r = readable file
-d = directory

if [ -r file_name]; then
(do stuff here)
fi

HTH
mark

Re: script question - if file exists

Robin Wakefield — Tue, 19 Feb 2002 16:24:27 GMT

Hi Jim,

The following common flags can be used:

-r file --> if file exists & is readable
-w file --> if file exists & is writable
-x file --> if file exists & is executable
-f file --> if file exists & is not a directory
-d file --> if file exists & is a directory
-s file --> if file exists & size > 0

Rgds, Robin

Re: script question - if file exists

SHABU KHAN — Tue, 19 Feb 2002 18:28:21 GMT

Hi,

man ksh says it all..

-Shabu