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- bash - Shell equality operators (=, ==, -eq) - Stack Overflow
It depends on the Test Construct around the operator Your options are double parentheses, double brackets, single brackets, or test If you use ((…)), you are testing arithmetic equality with == as in C: $ (( 1==1 )); echo $? 0 $ (( 1==2 )); echo $? 1 (Note: 0 means true in the Unix sense and a failed test results in a non-zero number ) Using -eq inside of double parentheses is a syntax
- 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
- 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
- How can I send an email through the UNIX mailx command?
How can I send an email through the UNIX mailx command? Asked 15 years, 4 months ago Modified 5 years, 7 months ago Viewed 801k times
- unix - History of users modifying a file in Linux - Stack Overflow
I am wondering if its possible to list who all modified the file with course of time I am aware that stat or ls -lrt will give the last user who modified the file But I want to find out if it is
- How do I get a timestamp in JavaScript? - Stack Overflow
I want a single number that represents the current date and time, like a Unix timestamp
- How to force cp to overwrite without confirmation - Stack Overflow
I'm trying to use the cp command and force an overwrite I have tried cp -rf foo * bar, but I am still prompted to confirm each overwrite
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