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Why is the Windows cmd.exe limited to 80 characters wide?
... to be able to fully read a program's output to the screen (unless you use MORE).
– Coding With Style
Jul 22 '09 at 22:20
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Get __name__ of calling function's module in Python
...spect.stack()[1] will return your caller's stack. From there, you can get more information about the caller's function name, module, etc.
See the docs for details:
http://docs.python.org/library/inspect.html
Also, Doug Hellmann has a nice writeup of the inspect module in his PyMOTW series:
http...
Performing user authentication in Java EE / JSF using j_security_check
...ve from container based security to alternatives like shiro or others? See more focussed question here:stackoverflow.com/questions/7782720/…
– Rajat Gupta
Oct 16 '11 at 6:42
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Is it possible to select the last n items with nth-child?
...specifically designed to solve this problem, so I doubt whether there is a more compatible alternative. Support looks pretty decent, though.
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Command line: piping find results to rm
...onverts" its standard input into arguments of another program, or, as they more accurately put it on the man page,
build and execute command lines from standard input
Note that if file names can contain whitespace characters, you should correct for that:
find -type f -name '*.sql' -mtime +15 ...
remove all variables except functions
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I guess I should have left that as a comment since it was more of an FYI. Sorry.
– lwileczek
Oct 26 '17 at 16:16
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How to find out element position in slice?
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I agree with Evan. Additional comment: it's more idiomatic to return just an int where -1 indicates "not found" (like bytes.IndexByte)
– Krzysztof Kowalczyk
Nov 29 '11 at 8:22
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How to find a table having a specific column in postgresql
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This was the more accurate of the two solutions offered - in my case. The pg_class query missed two (of 150) tables. The information_schema query captured all of the tables. I'll have to dig around to see why two tables fell outside of th...
Proper use of errors
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It seems to be missing a more general type for invalid argument. Not all invalid arguments fall under RangeError. Should you define custom types or just throw new Error("<message>");?
– anddero
Apr 5 at 7:...
Temporarily switch working copy to a specific Git commit
...n switch back to where you were using:
git checkout @{-1}
This is often more convenient than:
git checkout what-was-that-original-branch-called-again-question-mark
As you might anticipate, git checkout @{-2} will take you back to the branch you were at two git checkouts ago, and similarly for ...