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Determine which MySQL configuration file is being used
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Among all the other system calls, you will find something like:
stat64("/etc/my.cnf", 0xbfa3d7fc) = -1 ENOENT (No such file or directory)
stat64("/etc/mysql/my.cnf", {st_mode=S_IFREG|0644, st_size=4227, ...}) = 0
open("/etc/mysql/my.cnf", O_RDONLY|O_LARGEFILE) = 3
So, as you can see..it li...
Run automatically program on startup under linux ubuntu [closed]
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sudo mv /filename /etc/init.d/
sudo chmod +x /etc/init.d/filename
sudo update-rc.d filename defaults
Script should now start on boot. Note that this method also works with both hard links and symbolic links (ln).
Edit
At this point in the bo...
How to set the environmental variable LD_LIBRARY_PATH in linux
...le under Ubuntu the right way to do this is to add a custom .conf file to /etc/ld.so.conf.d, for example
sudo gedit /etc/ld.so.conf.d/randomLibs.conf
inside the file you are supposed to write the complete path to the directory that contains all the libraries that you wish to add to the system, fo...
Convert string to nullable type (int, double, etc…)
...ately, much of the data is in strings, where it should be int's or double, etc...
16 Answers
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Inline comments for Bash?
...t your comment here` \
def `#another chance for a comment` \
xyz etc
And for pipelines specifically, there is a cleaner solution with no overhead
echo abc | # normal comment OK here
tr a-z A-Z | # another normal comment OK here
sort | # the pipelines are autom...
How do emulators work and how are they written? [closed]
... state is a conglomeration of the processor registers, interrupt handlers, etc for a given processor target. For the 6502, you'd have a number of 8-bit integers representing registers: A, X, Y, P, and S; you'd also have a 16-bit PC register.
With interpretation, you start at the IP (instruction poi...
Make a program run slowly
...ate less (and possibly shorter) execution time frames, preempt more often, etc. See Process Scheduling (Chapter 10) of Understanding the Linux Kernel for more details on scheduling.
You may want to increase the timer interrupt frequency to put more load on the kernel, which will in turn slow everyth...
Linux日志切分工具：Logrotate - 更多技术 - 清泛网 - 专注C/C++及内核技术
...绍
显而易见，Logrotate是基于CRON来运行的，其脚本是「/etc/cron.daily/logrotate」：
#!/bin/sh
/usr/sbin/logrotate /etc/logrotate.conf
EXITVALUE=$?
if [ $EXITVALUE != 0 ]; then
/usr/bin/logger -t logrotate "ALERT exited abnormally with [$EXITVALUE]"
fi
exit 0
实...
How to add /usr/local/bin in $PATH on Mac
...on OS X are built using /usr/libexec/path_helper, called from the default /etc/profile. Start at man path_helper then add your paths in files in /etc/paths.d. You will find that pretty much every path setting example from other OSs includes $PATH because none of them seem to be able to commit to bei...
nginx error connect to php5-fpm.sock failed (13: Permission denied)
...fixed a security bug where o had rw permission to the socket file.
Open /etc/php5/fpm/pool.d/www.conf or /etc/php/7.0/fpm/pool.d/www.conf, depending on your version.
Uncomment all permission lines, like:
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
Restart fpm - sudo servi...