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IF statement to check file exists

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# 1  
Old 01-29-2010
IF statement to check file exists
Hi All,

If i run below copy command, it works absolutely fine,
Code:
/opt/csw/bin/scp axetlxyz01:/opt/data/test/QURIES* ./input

I want to make the above line better, by adding an IF statement, want to check if there is any file exists with name QURIES*.* then i need to copy that.
Code:
if [ -e axetlxyz01:/opt/data/test/QURIES*]
  /opt/csw/bin/scp axetlxyz01:/opt/data/test/QURIES* ./input

this code is not working, i suspect there is some problem with my IF statement, could you please help me. Smilie

PS : i have even tried -f in IF statement.

Thanks,
Ravi
Last edited by vbe; 01-29-2010 at 11:32 AM.. Reason: code tags please
# 2  
Old 01-29-2010
The problem isn't your if statement, it's your assumption. No shell that I know of can apply any of the file test parameters to a remote file, save those available via a mount.
# 3  
Old 01-29-2010
Anyway the syntax isnt correct:
Code:
                            space after *
if [ -e axetlxyz01:/opt/data/test/QURIES* ]
then
  /opt/csw/bin/scp axetlxyz01:/opt/data/test/QURIES* ./input
fi

# 4  
Old 01-29-2010
pludi - Can you please give me an example to use mount in this case, that would help a lot.

vbe - i dont think space after * is causing problem, it's still not working after removing space.
# 5  
Old 01-29-2010
I ment It needs space between last char and ] ...
# 6  
Old 01-29-2010
You can't (usually) mount remote filesystems using SSH, unless I've missed an FUSE module for that.

What you can do is run SSH first, and use the exit code from that (as it's propagated from the program run)
Code:
# Untested, but should work
num_files=$( /opt/csw/bin/ssh axetlxyz 'ls /opt/data/test/QURIES* | wc -l' )
if [ $num_files -gt 0 ]
then
    /opt/csw/bin/scp axetlxyz01:/opt/data/test/QURIES* ./input
fi

# 7  
Old 01-29-2010
pludi - you rock!! Smilie

Big Thank You!
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