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How to default to other directory instead of home directory
I am developing on a windows machine. The only place I need for linux command line is Git Bash. The problem is: When I open it, I am in the home directory. I have to change the directory to my workspace, like:
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How to get Git to clone into current directory
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So make sure the directory is empty (check with ls -a), otherwise the command will fail.
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Logging framework incompatibility
I'm building a small Java app and hoping to use logback for logging.
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Replace one character with another in Bash
...lexity is worse than linear. A small test: x="$(tr -dc 'a-z \n' </dev/urandom | head -c1M)"; time y="$(tr ' ' \\- <<< "$x")"; time z="${x// /-}". With a string length of 1M (=2^20) tr took 0.04s and bash 5.0.11 took 17s. With 2M tr took 0.07s (expected) but bash took 69s (4 times as lon...
New line in Sql Query
...blog.sqlauthority.com/2009/07/01/sql-server-difference-between-line-feed-n-and-carriage-return-r-t-sql-new-line-char/
DECLARE @NewLineChar AS CHAR(2) = CHAR(13) + CHAR(10)
PRINT ('SELECT FirstLine AS FL ' + @NewLineChar + 'SELECT SecondLine AS SL')
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How do I grep for all non-ASCII characters?
I have several very large XML files and I'm trying to find the lines that contain non-ASCII characters. I've tried the following:
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How to stop mongo DB in one command
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Starting and Stopping MongoDB is covered in the MongoDB manual. It explains the various options of stopping MongoDB through the shell, cli, drivers etc. It also details the risks of incorrectly stopping MongoDB (such as data corruptio...
Passing an array as a function parameter in JavaScript
...sociative array (named keys) instead, then use an object. Coming from PHP (and always led to this thread by google) this took me a while to figure out. You can pass the whole object as a parameter then. w3schools.com/js/js_objects.asp
– timhc22
May 29 '14 at 8:...
Getting LaTeX into R Plots
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As stolen from here, the following command correctly uses LaTeX to draw the title:
plot(1, main=expression(beta[1]))
See ?plotmath for more details.
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How to install multiple python packages at once using pip
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For installing multiple packages on the command line, just pass them as a space-delimited list, e.g.:
pip install wsgiref boto
For installing from a text file, then, from pip install --help:
-r FILENAME, --requirement=FILENAME
Install all the packages listed in the g...