Shell Programming and Scripting

Hi,

I have requirement to get a file from a remote location using SFTP only if the file has read/write permission either to the user or to the group.

Currently i m taking the ls of the required file and storing it in a flat file to check the file permission.

Please advice is there any way aprt from this to check the file permission in SFTP mode. so that i can avoid few steps.

Thanks in advance, Also please let me know if further details required.

-Ravin

Is this just to avoid errors if you cannot read it? R/W to all is no good?

No, sftp is just ftp is ssh clothing. You could ssh a script to put files into the archival flow based on an ls of the entire dir:

Code:

cd in_dir
echo "
  . ./.profile >/dev/null 2>&1
  cd out_dir
  ls -l | sed '
    s/^-rw.rw.* //
    t
    d
   ' | cpio -oaH crc | gzip -9
 " | ssh2 user@host ksh | gzcat | cpio -idmH crc

Thanks for the reply..

This is to check if the user doesnt have write permission on a file, then he shouldnt be able to get the file.

anyways will check the above code and provide you an update

User might have other write permission, but permission other is ignored if the group is a match, and permissions other and group are ignored if the user is a match. With ssh2 you can change the nose of the pipeline bit to test the write permission:

Code:

for fn in *.txt
do
  if [ -w "$fn" ]
  then
    echo "$fn"
  fi
done | . . .