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How do I run a rake task from Capistrano?
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With 'bundle exec' if available
– Bogdan Gusiev
Mar 18 '11 at 14:20
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Sending a mail from a linux shell script
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If the server is well configured, eg it has an up and running MTA, you can just use the mail command.
For instance, to send the content of a file, you can do this:
$ cat /path/to/file | mail -s "your subject" your@email.com...
How to run a command in the background and get no output?
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Use nohup if your background job takes a long time to finish or you just use SecureCRT or something like it login the server.
Redirect the stdout and stderr to /dev/null to ignore the output.
nohup /path/to/your/script.sh > /dev/...
Is the SQL WHERE clause short-circuit evaluated?
...icularly when operands or operators might
cause conditions to be raised or if the results of the expressions
can be determined without completely evaluating all parts of the
expression.
share
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imp...
Working with time DURATION, not time of day
...ly 1.0 equals 1 full day (starting on 1/1/1900). So 36 hours would be 1.5. If you change the format to [h]:mm, you'll see 36:00.
Therefore, if you want to work with durations, you can simply use subtraction, e.g.
A1: Start: 36:00 (=1.5)
A2: End: 60:00 (=2.5)
A3: Duration: =A...
Can jQuery get all CSS styles associated with an element?
...i].rules || sheets[i].cssRules;
for (var r in rules) {
if (a.is(rules[r].selectorText)) {
o = $.extend(o, css2json(rules[r].style), css2json(a.attr('style')));
}
}
}
return o;
}
function css2json(css) {
var s = {};
if (!css) re...
Last segment of URL in jquery
...21 '11 at 11:18
Frédéric HamidiFrédéric Hamidi
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What is the purpose of the : (colon) GNU Bash builtin?
...e case for some ancient Bourne shells). This leaves the else clause of the if statement as the only means for branching based on exit status:
if command; then :; else ...; fi
Since if requires a non-empty then clause and comments don't count as non-empty, : serves as a no-op.
Nowadays (that is: ...
Command Prompt - How to add a set path only for that batch file executing?
Basically, I know I can go through my control panel and modify the path variable. But, I'm wondering if there is a way to through batch programming have a temporary path included? That way it is only used during that batch file execution. I don't want to have people go in and modify their path varia...
Format number to always show 2 decimal places
...'s returning a string...So this method is really only useful for display. If you want to perform further mathematical computations on the rounded value do not use toFixed().
– TWright
Oct 15 '15 at 7:19
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