-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 How can i use an if in a bash script so that it will only run commands if the specified file is empty?
Basically, ive set up a cache system by which the output of ifconfig is stored in /var/cache/IP/1 Then, every minute my script is run. It first puts the output of ifconfig in /var/cache/IP/2 and diff's it with 1 outputing that to a file 'diff'. I then want to run a series of commands if the file diff is not empty. What im trying to do is get an email sent to me every time the IP changes on a specific machine, so i always have a record of it for logging in via ssh. The specific connection is ppp0 which auto redials on disconnect. If there is an easier way of doing this please share with me. Thanks Tom -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE8fWUSXCpWOla2mCcRAmyuAJ0dNeH725n8jc0UhaeIYgdxlerG3wCfQwtM mEDR987gtUilwovjGKbV3b8= =IODe -----END PGP SIGNATURE-----
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