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Thanks for the pointer about the useless use of true. Using builtins may be a security risk as they can be overloaded (hence the use of full paths everywhere).

Thanks for the pointer about the useless use of true. Using builtins may be a security risk as they can be overloaded (hence the use of full paths everywhere). I did not know about bash's extension of printf to print a date. I need to use the builtin to use it though. But I've received good advice elsewhere on how to do that securely, so I'll do it and do a write-up because it's not information that's easy to come by. Your advice is very helpful, thank you.

TristanBall 3y ago
Bash and zsh both allow: function /usr/bin/cat { echo hello; }; /usr/bin/cat hello So specifying a path isn't as useful as it seems
pgtan 3y ago
for builtin security see for example https://unix.stackexchange.com/questions/102746/how-to-invoke-a-shell-built-in-explicitly https://unix.stackexchange.com/questions/102746/how-to-invok...