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“unary operator expected” error in Bash if condition
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Someone bequeathed this bug to me in a build script. Saved me some time, thanks!
– Kyle
Aug 1 '18 at 19:05
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Command to change the default home directory of a user
...hing through symlinks (apache, ftpd, etc.).
You have to remember (or init script) to bind upon restarts, of course.
An example init script in /etc/fstab is
/extra-home/username /home/username none defaults,bind 0 0
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SQL Server: Query fast, but slow from procedure
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I found the problem, here's the script of the slow and fast versions of the stored procedure:
dbo.ViewOpener__RenamedForCruachan__Slow.PRC
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO
CREATE PROCEDURE dbo.ViewOpener_RenamedForCruachan_Slow
@S...
Sublime Text 3, convert spaces to tabs
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To automatically convert spaces to tabs on save, add the following Python script to a newly created subfolder called "UnexpandTabsOnSave" within "$SUBLIME_HOME$\Packages\":
import sublime, sublime_plugin, os
class ConvertSpacesToTabsOnSave( sublime_plugin.EventListener ):
# Run Sublime's 'unexp...
How do I escape ampersands in batch files?
...case, use for:
for %a in ("First & Last") do echo %~a
...in a batch script:
for %%a in ("First & Last") do echo %%~a
or
for %%a in ("%~1") do echo %%~a
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How to retrieve an element from a set without removing it?
...relatively simple manner. And sometimes that's all that matters in a quick script.
– tonysdg
Feb 21 '17 at 1:58
6
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Iterate over the lines of a string
...__':
for f in f1, f2, f3:
print list(f())
Running this as the main script confirms the three functions are equivalent. With timeit (and a * 100 for foo to get substantial strings for more precise measurement):
$ python -mtimeit -s'import asp' 'list(asp.f3())'
1000 loops, best of 3: 370 usec...
What's the difference between compiled and interpreted language?
...anguage is. I was told this is one of the differences between Java and JavaScript. Would someone please help me in understanding it?
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Using global variables in a function
... contrary to some OOP zealots who claim otherwise - especially for smaller scripts, where OOP is overkill.
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What does new self(); mean in PHP?
...less used in a daemon-like program, the singleton will only live while the script runs and then disappear along with the program.
– ILikeTacos
Oct 16 '13 at 21:07
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