To combine stderr and stdout into the stdout stream, we append this to a command: 2>&1 For example, the following command shows the first few errors from compiling main.cpp: g++ …

About Us The Open Group is a global consortium that enables the achievement of business objectives through technology standards and open source initiatives by fostering a culture of …

I'm on a server running a Linux shell. I need to mail a simple file to a recipient. How to do this, prefereably using only the mail command?

May 22, 2025 · Single UNIX Specification- “The Standard” The Single UNIX Specification is the standard in which the core interfaces of a UNIX OS are measured. The UNIX standard …

I am trying to figure out what is the usage of this command: echo < a.txt According to text book it should redirect a programs standards input. Now I am redirecting a.txt to echo but instead of

UNIX® certification provides a vendor-neutral, highly regarded, and global benchmark for identifying open operating systems. Only systems that are fully compliant and certified …

Adding n seconds to 1970-01-01 will give you a UTC date because n – the Unix timestamp – is the number of seconds that have elapsed since 00:00:00 Coordinated Universal Time (UTC), …

Gold Coast. The academic and commercial uptake of UNIX systems would help germinate and grow many existing and new technologies. An example of that innovation is bioinformatics, …

Under Linux and other Unix-related systems, there were traditionally only two characters that could not appear in the name of a file or directory, and those are NUL '\0' and slash '/'.

IEEE POSIX family of standards Single UNIX Specification Linux Standard Base and in the development of test suites for measurement of conformance to these standards and …