The UNIX® Standard | www.opengroup.org
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 includes …
unix - What is the meaning of "POSIX"? - Stack Overflow
Nov 23, 2009 · Since every Unix does things a little differently -- Solaris, Mac OS X, IRIX, BSD, and Linux all have their quirks -- POSIX is especially useful to those in the industry as it defines a …
How can I send an email through the UNIX mailx command?
Feb 17, 2010 · From the man page: Sending mail To send a message to one or more people, mailx can be invoked with arguments which are the names of people to whom the mail will be sent. …
What is the proper way to exit a command line program?
2 Take a look at Job Control on UNIX systems If you don't have control of your shell, simply hitting ctrl + C should stop the process. If that doesn't work, you can try ctrl + Z and using the jobs and …
How to convert DOS/Windows newline (CRLF) to Unix newline (LF)
Apr 10, 2010 · How can I programmatically (not using vi) convert DOS/Windows newlines to Unix newlines? The dos2unix and unix2dos commands are not available on certain systems. How …
unix - How can I pretty-print JSON in a shell script? - Stack Overflow
Dec 9, 2008 · json unix command-line format pretty-print edited Oct 6, 2021 at 8:31 community wiki 17 revs, 13 users 24% AnC
unix - How to comment out particular lines in a shell script - Stack ...
Aug 21, 2013 · Can anyone suggest how to comment particular lines in the shell script other than #? Suppose I want to comment five lines. Instead of adding # to each line, is there any other …
unix - Diff files present in two different directories - Stack Overflow
Nov 9, 2012 · I have two directories with the same list of files. I need to compare all the files present in both the directories using the diff command. Is there a simple command line option …
unix - Why should text files end with a newline? - Stack Overflow
Apr 8, 2009 · I assume everyone here is familiar with the adage that all text files should end with a newline. I've known of this "rule" for years but I've always wondered — why?
unix - Shell script "for" loop syntax - Stack Overflow
Very few systems have a dedicated sh, instead making it a link to other another shell. Ideally, such a shell invoked as sh would only support those features in the POSIX standard, but by default …
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