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info chown is clear on that: Some older scripts may still use `.' in place of the `:' separator. POSIX 1003.1-2001 (*note Standards conformance::) does not require support for that, but for backward compatibility GNU `chown' supports `.' so long as no ambiguity results. New scripts should avoid the use of `.' because it is not portable, and because it has ...


Most tools are useful to someone. Here's a question from someone who wants to use factor to help divide up a large file into optimally-sized chunks. Find a "moderately large" divisor of a given number?


NixOS does something along those lines, but not for the reasons that you quote. It still creates symlinks in /usr and /lib etc, because that is how a Linux system operates. If they didn't do so, they would need ridiculously long PATH, MANPATH, LD_LIBRARY_PATH, and other such variables. NixOS has good reasons for wanting to place applications in their own ...


When you compile a source code file, the newly generated output binary file has the permissions rw-r--r-- and is not executable, since there are no x in the string. Make it executable by running chmod +x hello preceed the command with sudo if needed. After that, run the binary with ./hello.


With old X fonts, `..' looked symmetrical like ‛..’ Also given `..' latex generates correct left and right single quotes like ‘..’ So `..' was a hack and in 2012 coreutils changed to shell like quoting '..' Now it wasn't full shell syntax however and would generate corrupted output if there were embedded "\r" chars etc. present. Also inconsistently in ...


The article you link goes on to say The servers collectively implement the POSIX API Since the applications are "userspace" applications written using the POSIX API, they can run with minimal changes on any POSIX-like operating system.

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