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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...
Java, Classpath, Classloading => Multiple Versions of the same jar/project
...other frameworks/jars used in my project require. But all of them require different major versions like:
5 Answers
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How to get the name of a function in Go?
..., some care may be required here: the documentation for .Pointer() states "If v's Kind is Func, the returned pointer is an underlying code pointer, but not necessarily enough to identify a single function uniquely. The only guarantee is that the result is zero if and only if v is a nil func Value."
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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...
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...
Strip double quotes from a string in .NET
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this has a side effect if there are more embedded quotes within the string
– Aadith Ramia
Oct 24 '17 at 0:10
add a comment
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In Scala, what exactly does 'val a: A = _' (underscore) mean?
...s initialises the variable to a default value. From the Scala Language Specification:
0 if T is Int or one of its subrange types,
0L if T is Long,
0.0f if T is Float,
0.0d if T is Double,
false if T is Boolean,
() if T is Unit,
null for all other types T.
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Adding information to an exception?
... %s' % arg1)
IOError: Stuff happens at arg1
Update 1
Here's a slight modification that preserves the original traceback:
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def bar(arg1):
try:
foo()
except Exception as e:
import sys
raise type(e), type(e)(e.message +
' happens at ...
Print array elements on separate lines in Bash?
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Try doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquoted, the results are unspecified. In Bash, both expand to separate args
and then wordsplit and globbed.
Quoted, "$@" expands each element as a separate argument, while "$*"
expands to the a...