Why Won't a Program Work in the Current Directory?
Because the current directory (i.e., ".") is not in the search path,for security reasons, as well as to insure that the correct program
versions are used. If an intruder is able to write a file to a
world-writable directory, like /tmp, presumably he or she would be
able to execute it if the directory were in the search path. The
solution to this is to include the directory in the command; e.g.,
"./myprog," instead of "myprog." Or add the current directory to your
PATH environment variable; e.g., "export PATH=".:"$PATH" using bash,
although this is discouraged for the reasons mentioned above.
7. How To Do This or Find Out That...
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