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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 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 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, 8 months ago Modified 3 years, 8 months ago Viewed 356k times
- 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
- 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 kill -9 %<job #> to kill it The '-9' is a type of signal You can man kill to see a list of signals
- unix - Why is 1 1 1970 the epoch time? - Stack Overflow
The definition of unix time and the epoch date went through a couple of changes before stabilizing on what it is now But it does not say why exactly 1 1 1970 was chosen in the end
- How to find out what group a given user has? - Stack Overflow
In Unix Linux, how do you find out what group a given user is in via command line?
- unix - mkdirs -p option - Stack Overflow
I'm confused about what the -p option does in Unix I used it for a lab assignment while creating a subdirectory and then another subdirectory within that one It looked like this: mkdir -p cmps012m lab1 This is in a private directory with normal rights (rlidwka) Oh, and would someone mind giving a little explanation of what rlidwka means?
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