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How to test an Internet connection with bash?
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on mac os this does not work via copy-paste: "-bash: ip: command not found ping: illegal option -- w"
– Benedikt S. Vogler
Feb 11 '16 at 13:30
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How to compare binary files to check if they are the same?
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The standard unix diff will show if the files are the same or not:
[me@host ~]$ diff 1.bin 2.bin
Binary files 1.bin and 2.bin differ
If there is no output from the command, it means that the files have no differences.
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Convert line-endings for whole directory tree (Git)
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dos2unix does that for you. Fairly straight forward process.
dos2unix filename
Thanks to toolbear, here is a one-liner that recursively replaces line endings and properly handles whitespace, quotes, and shell meta chars.
fi...
How to add leading zeros for for-loop in shell? [duplicate]
...r i in {01..05}; do echo "$i"; done
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02
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05
Disclaimer: Leading zeros only work in >=bash-4.
If you want to use printf, nothing prevents you from putting its result in a variable for further use:
$ foo=$(printf "%02d" 5)
$ echo "${foo}"
05
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START_STICKY and START_NOT_STICKY
...nd kills the service before it finishes executing. START_STICKY tells the OS to recreate the service after it has enough memory and call onStartCommand() again with a null intent. START_NOT_STICKY tells the OS to not bother recreating the service again. There is also a third code START_REDELIVER_I...
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
I tried to restart my Apache server on CentOS 5.0 and got this message:
11 Answers
11
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PHP file_get_contents() and setting request headers
With PHP, is it possible to send HTTP headers with file_get_contents() ?
7 Answers
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...log
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
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如果系统里有Syslog的话，那么在启动Rsyslog之前，别忘了先关闭它：
shell> service syslog stop
shell> service rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...log
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
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如果系统里有Syslog的话，那么在启动Rsyslog之前，别忘了先关闭它：
shell> service syslog stop
shell> service rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升
...log
/etc/rsyslog.conf
/etc/rsyslog.d
/etc/sysconfig/rsyslog
...
如果系统里有Syslog的话，那么在启动Rsyslog之前，别忘了先关闭它：
shell> service syslog stop
shell> service rsyslog start
如果运行Rsyslog时出现问题，那么可以通过激活调试模式来查...