Systems Administration

GNU ddrescue copies data from one file or block device (hard disc, cdrom, etc) to another, trying hard to rescue data in case of read errors.

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Developer: Free Software Foundation, Inc.
License: GNU General Public License (GPL)
Operating System: OS Independent

Analog is a program to measure the usage on your web server.

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Developer: Stephen Turner
License: GNU General Public License (GPL)
Operating System: Windows (all versions), DOS, Mac, all Unix & Linux, OS/2, OpenVMS, Acorn RiscOS, BeOS, Mac OS X, NeXTSTEP