This is a listing of the best problem determination tools available for Linux. The list is broken down by the categories of Process Information and Debugging, Network, System Information, Files and Object Files, Kernel, and Miscellaneous. Each tool listing includes a short description of the tool, where the tool can be obtained...
Traditionally, Unix/Linux/POSIX filenames can be almost any sequence of bytes, and their meaning is unassigned. The only real rules are that "/" is always the directory separator, and that filenames can't contain byte 0 (because this is the terminator). Although this is flexible, this creates many unnecessary problems. In particular, this lack of limitations makes it unnecessarily difficult to write correct programs (enabling many security flaws), makes it impossible to consistently and accurately display filenames, causes portability problems, and confuses users. more ....
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