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Is file append atomic in UNIX?
In general, what can we take for granted when we append to a file in UNIX from multiple processes? Is it possible to lose data (one process overwriting the other's changes)? Is it possible for data to get mangled? (For example, each process is appending one line per append to a log file, is it po...
Java current machine name and logged in user?
Is it possible to get the name of the currently logged in user (Windows/Unix) and the hostname of the machine?
4 Answers
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How to use git with gnome-keyring integration
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Update Q4 2016:
Unix, Mac (Git 2.11+)
git config --global credential.helper libsecret
(See "Error when using Git credential helper with gnome-keyring")
Windows:
git config --global credential.helper manager
(See "How to sign out in...
C++ wait for user input [duplicate]
...the comp.lang.c FAQ covers this in some depth, with solutions for Windows, Unix-like systems, and even MS-DOS and VMS.
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C++ code file extension? .cc vs .cpp [closed]
... broken down by different environments (from the "C++ Primer Plus" book):
Unix uses: .C, .cc, .cxx, .c
GNU C++ uses: .C, .cc, .cxx, .cpp, .c++
Digital Mars uses: .cpp, .cxx
Borland C++ uses: .cpp
Watcom uses: .cpp
Microsoft Visual C++ uses: .cpp, .cxx, .cc
Metrowerks CodeWarrior uses: .c...
Please explain the exec() function and its family
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Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes.
The simple idea behind the UNIX "execution model" is that there are two operations you can do.
The first is to for...
PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]
... repeat here, so I'd like to offer some advice:
I would recommend using a Unix Timestamp integer instead of a human-readable date format to handle time internally, then use PHP's date() function to convert the timestamp value into a human-readable date format for user display. Here's a crude exampl...
Convert timestamp to readable date/time PHP
...mp to their datetime standardisation becouse i converted an datetime to an unix timestamp but in my database it is still an datetime i wil try this but i still find it weird that there is no specific command for it
– Marc Roelse
Jan 15 at 14:46
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What is the purpose of fork()?
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fork() is how you create new processes in Unix. When you call fork, you're creating a copy of your own process that has its own address space. This allows multiple tasks to run independently of one another as though they each had the full memory of the machine to t...
How to color System.out.println output? [duplicate]
...u may not be able to color Window's cmd prompt, but it should work in many unix (or unix-like) terminals.
Also, note that some terminals simply won't support some (if any) ANSI escape sequences and, especially, 24-bit colors.
Usage
Please refer to the section Curses at the bottom for the best sol...