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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
I'm trying to learn shell scripting, and I need to understand someone else's code. What is the $? variable hold? I can't Google search the answer because they block punctuation characters.
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Admob Error in Eclipse for android:configChanges
Eclipse is giving me an error on the android:configChanges line in my AndroidManifest.xml:
7 Answers
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初窥InnoDB的Memcached插件 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...安装最新的稳定版，激活WITH_INNODB_MEMCACHED即可：
shell> groupadd mysql
shell> useradd -r -g mysql mysql
shell> tar zxvf mysql-<VERSION>.tar.gz
shell> cd mysql-5.6.13
shell> cmake . -DWITH_INNODB_MEMCACHED=ON
shell> make
shell> make install
shell> cd /usr/local/mysql
shell> ...
source of historical stock data [closed]
I'm trying to make a stock market simulator (perhaps eventually growing into a predicting AI), but I'm having trouble finding data to use. I'm looking for a (hopefully free) source of historical stock market data.
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How to save and restore multiple different sessions in Vim?
Depending on my task in Vim I have several tabs open.
14 Answers
14
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How to get the command line args passed to a running process on unix/linux systems?
On SunOS there is pargs command that prints the command line arguments passed to the running process.
13 Answers
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C++: what regex library should I use? [closed]
I'm working on a commercial (not open source) C++ project that runs on a linux-based system. I need to do some regex within the C++ code. (I know: I now have 2 problems.)
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Migrating from JSF 1.2 to JSF 2.0
I am working with a rather large app written in JSF 1.2 .
JSF 1.2 is around 6 years old now. I need to upgrade to JSF 2.0. How painful will this be? I noticed that some attributes in custom tags have been changed etc.
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How can I know if a branch has been already merged into master?
I have a git repository with multiple branches.
9 Answers
9
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From inside of a Docker container, how do I connect to the localhost of the machine?
So I have a Nginx running inside a docker container, I have a mysql running on localhost, I want to connect to the MySql from within my Nginx. The MySql is running on localhost and not exposing a port to the outside world, so its bound on localhost, not bound on the ip address of the machine.
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