Favourite scripts and tools for a system administrator

You are welcome to view and borrow from these files, but please note most of the scripts have code collected all over the www, or at least have parts that are written by many programmers. For those scripts that are by other programmers, there is a link and acknowledgement at the top-line of the script. With these tools, there's few comments or documentation.

<>Note: Please observe copyrights with these scripts. If none is given for a particular file, an implicit copyright by the author may be presumed which permits copying, modification and redistribution and with any express or implied warranties disclaimed (ie, use at your own risk).

• Perl one-liners
  • Substitute string in files
  • lines a..b in a file
  • Delete first n lines from file
• CPAN
  • MCrypt
• Solaris 10 download
• Unix system administrators web-ring
• Unixguide