May 22, 2025 · The Single UNIX Specification is the standard in which the core interfaces of a UNIX OS are measured. The UNIX standard includes a rich feature set, and its core volumes …

Sep 10, 2011 · When you try to execute a program in unix (one with the executable bit set), the operating system will look at the first few bytes of the file. These form the so-called "magic …

unix bash shell script equal comparison operator is not comparing. 1. Equal and not equal operators not ...

In GNU/Linux, try to use ls, namei, getfacl, stat.. For Dir [flying@lempstacker ~]$ ls -ldh /tmp drwxrwxrwt. 23 root root 4.0K Nov 8 15:41 /tmp [flying@lempstacker ~]$ namei -l /tmp f: /tmp …

Jul 3, 2013 · Solution (Exact Process Name Match) pgrep -x <process_name> | xargs kill -9 (incidentally, for this specific use case, might as well do pkill -9 -x <process_name>, but the …

Sep 2, 2015 · I am wondering if its possible to list who all modified the file with course of time. I am aware that stat or ls -lrt will give the last user who modified the file. But I want to find out if it is

Nov 23, 2009 · POSIX is similar to the UNIX standard, and it is intended to ensure that software written for one POSIX-compliant operating system can run on other POSIX-compliant …

Jul 9, 2009 · Standard Unix exit codes are defined by sysexits.h, as David mentioned. The same exit codes are used by portable libraries such as Poco - here is a list of them: Class …

Oct 20, 2014 · It depends on the context. I think you're referring to the operating system's hostname (returned by hostname when you're logged in).

I have a script which uses test command to check if $? (return code of last executed command) is not equal to zero.