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Now 18 months later this seems possible, as easy as exmplained in this blog entry: https://scottlinux.com/2014/04/01/apply-security-updates-to-freebsd-with-pkgng/


In practice, the kernel will cache the executable and any file it needs (e.g. libraries) in RAM. The shell has no way to do anything. If it's an external program, it needs to be executed. Unices (excluding unix emulation layers like Cygwin) tend to make loading a program pretty efficient, but it's never going to be as fast as executing a built-in command. ...


find . -name "*.xml" -print0 | xargs -0 touch Learn find | xargs


This is very distribution dependent. /etc/environment belongs to PAM on Linux (as was pointed out already). However, /etc/environment is for logins, not for daemons. For services and daemons there are usually some configuration scripts that are sourced in (usually by some rc script), for instance these are found at /etc/conf.d/ with Gentoo Linux. But ...


When I add that path to PATH in /etc/environment, the user can call the script without providing the full path but the daemon can not; it just says "not found". According to this source, which is IBM AIX documentation (I could not find anything else) but is presumably true in general:1 The first file that the operating system uses at login time is ...


The wall command short for write-to-all was traditionally used to broadcast a message to all logged on users. But I feel that communication needs to be addressed at a human level as well for your department to function properly. who or w will show a list of logged in users, and whether their terminal is idle, giving some indication whether they are still ...

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