Fully Automating SSH rsync with cron and expect

I want to fully automate SSH rsync using cron and expect.

rsync expect

Create a script like this.

#!/usr/bin/expect

# log_file /var/log/expect.log

set PW "password"
set Prompt "\[#$%>\]"
# set RemoteHost [lindex $argv 0]

set timeout 5

spawn rsync -av -e "ssh" -r "/mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/" [email protected]/root/lib/contacam
# spawn env LANG=C /usr/bin/ssh ${RemoteHost}
expect {
    -glob "(yes/no)?" {
        send "yes\n"
        exp_continue
    }
    -glob "password:" {
        send -- "${PW}\n"
    }
}

expect {
    -glob "${Prompt}" {
        interact
        exit 0
    }
}

Please modify set PW "password" and spawn rsync -av -e "ssh" -r "/mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/" [email protected]/root/lib/contacam.

Let's try running the created script.

yuis@DESKTOP-UHU8FSH:/mnt/c/pg$ /mnt/c/pg/expect/rsync_ssh
spawn rsync -av -e ssh -r /mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/ [email protected]:/root/lib/contacam
[email protected]'s password:
sending incremental file list
created directory /root/lib/contacam
./
01/
01/31/
01/31/確認済み/
01/31/確認済み/det_2018_01_31_08_23_53.gif
01/31/確認済み/det_2018_01_31_08_23_53.mp4
01/31/確認済み/det_2018_01_31_08_24_12.gif
01/31/確認済み/det_2018_01_31_08_24_12.mp4
01/31/確認済み/det_2018_01_31_08_26_38.gif
01/31/確認済み/det_2018_01_31_08_26_38.mp4
01/31/確認済み/det_2018_01_31_08_28_57.gif
01/31/確認済み/det_2018_01_31_08_28_57.mp4
01/31/確認済み/rec_2018_01_31_16_17_52.mp4

sent 1,986,489 bytes  received 247 bytes  1,324,490.67 bytes/sec
total size is 1,985,304  speedup is 1.00

Yes, it automated the password input properly.

Next, let's register this in cron.

rsync cron

Registering this in cron should probably work.

*/10 * * * * /mnt/c/pg/expect/rsync_ssh

However, cron in bash on windows has too many bugs to be usable.

So, I'd like to use a method of looping in a shell script. I hope Microsoft fixes the cron bugs eventually, so let's endure until then.

First, for testing.

#!/bin/bash

while [ 1=0 ]
do
  sleep 3
  echo "===================================================================="
  df -h
done

Now, this one too.

#!/bin/bash

while [ 1=0 ]
do
  sleep 3
  echo "===================================================================="
  /mnt/c/pg/expect/rsync_ssh
done

Did you get output like this?

$ . /mnt/c/pg/dev.sh
====================================================================
spawn rsync -av -e ssh -r /mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/ [email protected]:/root/lib/contacam
[email protected]'s password:
sending incremental file list

sent 334 bytes  received 15 bytes  698.00 bytes/sec
total size is 1,985,304  speedup is 5,688.55
====================================================================
spawn rsync -av -e ssh -r /mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/ [email protected]:/root/lib/contacam
[email protected]'s password:
sending incremental file list

sent 334 bytes  received 15 bytes  698.00 bytes/sec
total size is 1,985,304  speedup is 5,688.55
====================================================================
spawn rsync -av -e ssh -r /mnt/c/ContaCam/Logicool HD Pro Webcam C920/2018/ [email protected]:/root/lib/contacam
[email protected]'s password:
sending incremental file list

sent 334 bytes  received 15 bytes  698.00 bytes/sec
total size is 1,985,304  speedup is 5,688.55

Now, let's make it execute every 5 minutes.

#!/bin/bash

while [ 1=0 ]
do
  sleep 300
  echo "===================================================================="
  /mnt/c/pg/expect/rsync_ssh
done

That's all done.