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 …
linux - How can I recursively find all files in current and subfolders ...
Aug 17, 2016 · How can I recursively find all files in current and subfolders based on wildcard matching?
Difference between CR LF, LF and CR line break types
Oct 12, 2009 · I'd like to know the difference (with examples if possible) between CR LF (Windows), LF (Unix) and CR (Macintosh) line break types.
How to fix Docker: Permission denied - Stack Overflow
Feb 24, 2018 · 1 The Docker daemon binds to a Unix socket instead of a TCP port. By default that Unix socket is owned by the user root and other users can only access it using sudo. The …
How to check if $? is not equal to zero in unix shell scripting?
How to check if $? is not equal to zero in unix shell scripting? Asked 12 years, 7 months ago Modified 3 years, 7 months ago Viewed 356k times
Find all files containing a specific text (string) on Linux
Jun 6, 2013 · How do I find all files containing a specific string of text within their file contents? The following doesn't work. It seems to display every single file in the system. find / -type f …
Are there any standard exit status codes in Linux?
Jul 9, 2009 · 4 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 …
bash - How can I split a large text file into smaller files with an ...
I've got a large (by number of lines) plain text file that I'd like to split into smaller files, also by number of lines. So if my file has around 2M lines, I'd like to split it up into 10 files t...
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 …
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...