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gitignore without binary files
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It is fairly common in Unix culture to name shell scripts as well as binary executables without extensions, in which case this solution will cause scripts to be ignored. A better idea is to just add binary executables to .gitignore manually wheneve...
How to delete files older than X hours
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Was hopeful because this old UNIX doesn't have -mmin, but, sadly this is of no help as this old UNIX also does not like fractional values for mtime: find: argument to -mtime must be an integer in the range -2147483647 to 2147483647
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【App Inventor 2 数据可视化】使用柱状图和饼图收集数据 - App应用开发 - ...
...值。这是一个列表的列表！
“列表的列表”是数据科学编程的重要数据结构。数据通常采用这种格式。想象一个每行包含两个元素的长列表，例如有两列的电子表格:
添加3个列表块到现有代码块中:
对于第一个插槽，元素...
How can I get the current date and time in UTC or GMT in Java?
... the value within a java.util.Date is the number of milliseconds since the Unix epoch, which occurred at midnight January 1st 1970, UTC. The same epoch could also be described in other time zones, but the traditional description is in terms of UTC. As it's a number of milliseconds since a fixed epoc...
Server is already running in Rails
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Remove the file: C:/Sites/folder/Pids/Server.pids
Explanation
In UNIX land at least we usually track the process id (pid) in a file like server.pid. I think this is doing the same thing here. That file was probably left over from a crash.
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Does PHP have threading?
...ulti-threaded Windows web servers (IIS, Netscape). This does not matter in Unix environments, yet.
– Joe Watkins
Jan 10 '13 at 19:20
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javac : command not found
...y allows to correct at least 6 characters, so I changed something more. On Unix type systems (is CentOS some kind of Unix?) you have to specify ./ to start something in the current directory. Feel free to reedit, if my edits get approved.
– user unknown
Mar 23 ...
Does free(ptr) where ptr is NULL corrupt memory?
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@Tomas: the problem was in things like Version 7 Unix. When I was learning, free(xyz) where xyz == NULL was a recipe for instant disaster on the machine where I learned (ICL Perq running PNX, which was based on Version 7 Unix with some System III extras). But I've not cod...
How can I change my Cygwin home folder after installation?
...User auxiliary class. See also the section called “The cygwin schema”.
unix AD only: The user's home directory is set to the POSIX path given in the unixHomeDirectory attribute from the posixAccount auxiliary class. See also the section called “The unix schema”.
desc The user's home director...
Confused about stdin, stdout and stderr?
...utput of a process running?
It's because they're not normal files. While UNIX presents everything as a file in a file system somewhere, that doesn't make it so at the lowest levels. Most files in the /dev hierarchy are either character or block devices, effectively a device driver. They don't have...