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  • The UNIX® Standard | www. opengroup. org
    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 includes a rich feature set, and its core volumes are simultaneously the IEEE Portable Operating System Interface (POSIX) standard and the ISO IEC 9945 standard
  • What are the special dollar sign shell variables? - Stack Overflow
    In Bash, there appear to be several variables which hold special, consistently-meaning values For instance, myprogram amp;; echo $! will return the PID of the process which backgrounded myprog
  • Display curl output in readable JSON format in Unix shell script
    Display curl output in readable JSON format in Unix shell script Asked 11 years, 3 months ago Modified 8 months ago Viewed 474k times
  • Whats a concise way to check that environment variables are set in a . . .
    The ${var?} construct is portable back to Version 7 UNIX and the Bourne Shell (1978 or thereabouts) The ${var:?} construct is slightly more recent: I think it was in System III UNIX circa 1981, but it may have been in PWB UNIX before that It is therefore in the Korn Shell, and in the POSIX shells, including specifically Bash
  • www. opengroup. org
    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 collaboration, inclusivity, and mutual respect among our diverse group of 900+ memberships Our Membership includes customers, systems and solutions suppliers, tool vendors, integrators, academics, and consultants
  • What does the line #! bin sh mean in a UNIX shell script?
    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 number", which can be used to decide the format of the program and how to execute it
  • How to find the files that are created in the last hour in unix
    $ find srch_dir -amin -60 # access time shows files whose metadata has been changed (ctime), the file contents itself have been modified (mtime), or accessed (atime) in the last hour, respectively ctime is non-unintuitive and warrants further explanation: ctime: Unlike mtime, which is only related to the contents inside a file, changed timestamp indicates the last time some metadata of a file
  • Difference between CR LF, LF and CR line break types
    I'd like to know the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types
  • Powershells equivalent to Linux Unix ls -al - Stack Overflow
    Is there a PowerShell equivalent to the ls -al command in Linux Unix? I tried to find something, but it said there wasn't an equivalent command in PowerShell





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