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How do I use Ruby for shell scripting?
I have some simple shell scripting tasks that I want to do
13 Answers
13
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How to write a cron that will run a script every day at midnight?
...crontab line will look something like this:
00 00 * * * ruby path/to/your/script.rb
(00 00 indicates midnight--0 minutes and 0 hours--and the *s mean every day of every month.)
Syntax:
mm hh dd mt wd command
mm minute 0-59
hh hour 0-23
dd day of month 1-31
mt month 1-12
wd day of...
HTML Script tag: type or language (or omit both)?
...When W3C was working on HTML5, they discovered all browsers have "text/javascript" as the default script type, so they standardized it to be the default value. Hence, you don't need type either.
For pages in XHTML 1.0 or HTML 4.01 omitting type is considered invalid. Try validating the following:
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Clone Object without reference javascript [duplicate]
... A = Object.create(obj);
var B = Object.create(obj);
A.a = 30;
B.a = 40;
alert(obj.a + " " + A.a + " " + B.a); // 25 30 40
This creates a new object in A and B that inherits from obj. This means that you can add properties without affecting the original.
To support legacy implementations, you c...
Do you need text/javascript specified in your tags?
I read somewhere that you no longer need things like type="text/javascript" and the weird CDATA and <!-- things in your script tags. So, instead of:
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Which is better: … or …
...tribute as required while HTML5 has it as optional, defaulting to text/javascript. HTML5 is now widely implemented, so if you use the HTML5 doctype, <script>...</script> is valid and a good choice.
As to what should go in the type attribute, the MIME type application/javascript registe...
Can I run javascript before the whole page is loaded?
I want to run a bit of javascript before the whole page has loaded. Is this possible? Or does the code start to execute on </html> ?
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write a shell script to ssh to a remote machine and execute commands
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There are multiple remote linux machines, and I need to write a shell script which will execute the same set of commands in each machine. (Including some sudo operations). How can this be done using shell scripting?
You can do this with ssh, for example:
#!/bin/bash
USERNAME=someUser
HOSTS="...
Bash Script : what does #!/bin/bash mean? [duplicate]
In bash script, what does #!/bin/bash at the 1st line mean ?
3 Answers
3
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Pass all variables from one shell script to another?
Lets say I have a shell / bash script named test.sh with:
7 Answers
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