Thursday, 9 September 2010

Quick Tip: PUT - scp files from remote machine to local machine

It is often desirable to have a quick look at a file on a remote machine, such as an HPC cluster, on your desktop machine. I use MacFUSE and SSHFS for this but sometimes I like to move a file without finding my current location in a finder windows. I have written a quick wrapper around scp with a line to determine the IP address of my local machine, stored as an environment variable.

Add the following lines to your .bashrc on the remote machine.

export DESKTOP=$(last -100 |grep $(whoami) |head -n 1 |perl -ane 'print $F[2]')
if [ -z "$1" ]; then
    echo "put - Sends specified files to Desktop of local machine";
    echo "usage: put filesToSend";
find "$*" |xargs -I % scp % $DESKTOP:~/Desktop

Then reload the file with source .bashrc. You should now be able to type put fileName, and the file will appear on your desktop. As long as you have your rsa keys set up, otherwise it will ask for a password too. It works for multiple files too, such as *.png. 

I find it useful for quickly viewing pdfs and images. 

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