
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 …
unix - what does '$?' mean in a shell script? - Stack Overflow
Oct 5, 2012 · I came across a shell script that contains a statement like, if [ $val -eq $? ] What does $? mean here?
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unix - How to check permissions of a specific directory ... - Stack ...
I know that using ls -l "directory/directory/filename" tells me the permissions of a file. How do I do the same on a directory? I could obviously use ls -l on the directory higher in the hierarchy...
git - How to change line-ending settings - Stack Overflow
Is there a file or menu that will let me change the settings on how to deal with line endings? I read there are 3 options: Checkout Windows-style, commit Unix-style Git will convert LF to CRLF …
unix - How to kill a process running on particular port in Linux ...
Jul 20, 2012 · Use the command sudo netstat -plten |grep java used grep java as tomcat uses java as their processes. It will show the list of processes with port number and process id tcp6 …
The Register of UNIX® Certified Products - Open Group
UNIX® certification provides a vendor-neutral, highly regarded, and global benchmark for identifying open operating systems. Only systems that are fully compliant and certified …
How to fix Docker: Permission denied - Stack Overflow
Feb 24, 2018 · The Docker daemon always runs as the root user. If you don’t want to preface the docker command with sudo, create a Unix group called docker and add users to it. When the …
unix - What are file descriptors, explained in simple terms? - Stack ...
Mar 10, 2011 · 41 File Descriptors (FD) In Linux/Unix, everything is a file. Regular "files", directories, and even devices are files. Every file has an associated number called the file …
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 …