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How do I test if a variable is a number in Bash?
I just can't figure out how do I make sure an argument passed to my script is a number or not.
38 Answers
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How can I load an object into a variable name that I specify from an R data file?
...t from another session, it is loaded with the same name, which the loading script cannot possibly know. This name could overwrite an existing variable of the same name in the loading session. Is there a way to safely load an object from a data file into a specified variable name without risk of clob...
Command not found error in Bash variable assignment
I have this script called test.sh:
5 Answers
5
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Multiple glibc libraries on a single host
...dn't risk a production setup with anything less.
crosstool-NG is a set of scripts that downloads and compiles everything from source for us, including GCC, glibc and binutils.
Yes the GCC build system is so bad that we need a separate project for that.
This setup is only not perfect because cross...
Combining node.js and Python
...concurrency as do node.js.
If you feel adventurous, learn clojure (clojurescript, clojure-py) and you'll get the same language that runs and interoperates with existing code on Java, JavaScript (node.js included), CLR and Python. And you get superb marshalling protocol by simply using clojure data ...
How can Bash execute a command in a different directory context?
... current working directory is very important for running it correctly. The script affects the files that live inside the directory it is run within.
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Testing service in Angular returns module is not defined
...e same problem, and I understood why it wasn't working:
The jasmine.js javascript must be referenced BEFORE the angular-mocks.js file.
Indeed, the angular-mocks.js checks if Jasmine is loaded, and only if it is it will add the module function to the window.
Here is an extract of Angular Mocks code:...
curl: (60) SSL certificate problem: unable to get local issuer certificate
...Hello Server Hello, Certificate, Server Hello Done Alert (level : Fatal, Description: unknown CA (48)) Can you please guide me and help me out in this ?
– user3812540
Jul 8 '14 at 4:44
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“use database_name” command in PostgreSQL
...me how I can make new connection to database and close previous by using pgscript query?
– sam
Apr 27 '12 at 6:41
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Git 工具 - 子模块(submodule)：一个仓库包含另一个仓库 - 开源 & Github -...
...102 Sep 17 15:21 includes
drwxr-xr-x 4 schacon staff 136 Sep 17 15:21 scripts
drwxr-xr-x 4 schacon staff 136 Sep 17 15:21 src
$ cd DbConnector/
$ ls
$
其中有 DbConnector 目录，不过是空的。 你必须运行两个命令：git submodule init 用来初始化本地配置文...