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How to set variables in HIVE scripts
...em variables as well, so you can reference ${env:USER} for example.
To see all the available variables, from the command line, run
% hive -e 'set;'
or from the hive prompt, run
hive> set;
Update:
I've started to use hivevar variables as well, putting them into hql snippets I can include from hi...
Replace one character with another in Bash
.... Example:
foo=" "
# replace first blank only
bar=${foo/ /.}
# replace all blanks
bar=${foo// /.}
See http://tldp.org/LDP/abs/html/string-manipulation.html for more details.
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What's the scope of the “using” declaration in C++?
...
... which is generally a bad thing.
– Catskul
Feb 16 '11 at 5:25
17
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Python argparse: default value or specified value
...e default and since I need to do some ops, I have something like this self.foo = (args.bar or some_else_source).upper(). It will break on None object AFAIUC.
– 0andriy
Aug 12 '19 at 14:02
...
Adding HTML entities using CSS content
...
Update: PointedEars mentions that the correct stand in for   in all css situations would be
'\a0 ' implying that the space is a terminator to the hex string and is absorbed by the escaped sequence. He further pointed out this authoritative description which sounds like a good solution to...
How to write a bash script that takes optional input arguments?
...
You could use the default-value syntax:
somecommand ${1:-foo}
The above will, as described in Bash Reference Manual - 3.5.3 Shell Parameter Expansion [emphasis mine]:
If parameter is unset or null, the expansion of word is substituted. Otherwise, the value of parameter is sub...
Exception messages in English?
...
This issue can be partially worked around. The Framework exception code loads the error messages from its resources, based on the current thread locale. In the case of some exceptions, this happens at the time the Message property is accessed.
For...
jQuery send string as POST parameters
...d out how to send $.post data as a string. the accepted answer does not at all help me with that. thank you.
– chiliNUT
Jun 27 '14 at 23:11
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Fork and synchronize Google Code Subversion repository into GitHub
...ample/example.git
git push origin master
Now that you have this, occasionally you will have to synchronise the Subversion repository with Git. It'll look something like:
git svn rebase
git push
In gitk or whatever, this would look something like this:
o [master][remotes/trunk][remotes/origin/m...
What's the best way of scraping data from a website? [closed]
...programming interface or another mechanism to access that data programmatically.
2 Answers
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