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Run an untrusted C program in a sandbox in Linux that prevents it from opening files, forking, etc.?
... requires patching the kernel.
It is also possible to create a sandbox on Unix-like systems using chroot(1), although that is not quite as easy or secure. Linux Containers and FreeBSD jails are a better alternative to chroot. Another alternative on Linux is to use a security framework like SELinux ...
How to edit log message already committed in Subversion?
...y log messages because they are unversioned and will be lost permanently.
Unix-hosted SVN
Go to the hooks directory on your Subversion server (replace ~/svn/reponame with the directory of your repository)
cd ~/svn/reponame/hooks
Remove the extension
mv pre-revprop-change.tmpl pre-revprop-chang...
What are the differences between various threading synchronization options in C#?
...lly also exist in .NET as WaitHandles. The Pulse/Wait model is similar to Unix's pthread_signal and pthread_wait but are faster because they can be entirely user-mode operations in the un-contended case.
Monitor.Pulse/Wait is simple to use. In one thread, we lock an object, check a flag/state/pro...
How would I get a cron job to run every 30 minutes?
...awes: I've also used */xx with success in the past, but on Linux and other UNIXes. I've not personally tried Mac OSX. The original question didn't say which OS. Some older UNIXes don't support */xx
– Eddie
Feb 25 '09 at 6:03
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How can I safely encode a string in Java to use as a filename?
...
@vog: "*" is only allowed in most Unix-based filesystems, NTFS and FAT32 do not support it.
– Jonathan
Aug 17 '09 at 18:26
1
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How do you get the list of targets in a makefile?
...uld work. I can only guess you're using an ancient cmake, or not using the Unix Makefiles generator?
– Timmmm
Mar 1 '17 at 13:36
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Preserve line endings
...on on windows and I noticed that it automatically converts line endings to Unix (\n). Is there an option to tell sed to use Windows line endings (\r\n) or even better to preserve the line endings from the file?
...
What is time_t ultimately a typedef to?
...are the meanings of
arithmetic operations applied to time
values.
Unix and POSIX-compliant systems implement the time_t type as a signed
integer (typically 32 or 64 bits wide)
which represents the number of seconds
since the start of the Unix epoch:
midnight UTC of January 1, 1970 (...
How are everyday machines programmed?
...as blue-ray DVD players and wireless routers do run their code on top of a unix-based operating system.
Update
Along the lines of what others have said, many modern embedded systems also run a flavor of windows. It depends up on the application. Also, there is a trend in many spaces to run on a m...
How to save username and password with Mercurial?
...up is a real pain if you have a few users and repositories; you need local unix users and have to muck about with restricting the commands that can be run with .ssh/authorized_keys and a shell wrapper. Not exactly a clean solution.
– Draemon
Jun 17 '11 at 13:29...