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How do I navigate in the results of Diff
...ram to be used for showing you the output of diff, log, show etc.
On new (linux) systems the default $PAGER used (even when it is not set) is less (it used to be the less capable more).
In both less and more the ? key gives you a command shortcut list.
...
How to debug Apache mod_rewrite
...ased on Ben's answer you you could do the following when running apache on Linux (Debian in my case).
First create the file rewrite-log.load
/etc/apache2/mods-availabe/rewrite-log.load
RewriteLog "/var/log/apache2/rewrite.log"
RewriteLogLevel 3
Then enter
$ a2enmod rewrite-log
followed b...
Local file access with JavaScript
...h as current CPU usage or total ram in use, etc.
You can create a windows, linux, or mac desktop application with it that doesn't require any installation.
http://nwjs.io
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SQLite: How do I save the result of a query as a CSV file?
...command line, which isn't ideal if you'd like to build a reusable script. Python makes it easy to build a script that can be executed programatically.
import pandas as pd
import sqlite3
conn = sqlite3.connect('your_cool_database.sqlite')
df = pd.read_sql('SELECT * from orders', conn)
df.to_csv('o...
Easy way to test a URL for 404 in PHP?
...29 May 2004 12:28:14 GMT
[Server] => Apache/1.3.27 (Unix) (Red-Hat/Linux)
[Last-Modified] => Wed, 08 Jan 2003 23:11:55 GMT
[ETag] => "3f80f-1b6-3e1cb03b"
[Accept-Ranges] => bytes
[Content-Length] => 438
[Connection] => close
[Content-Type] => text/ht...
After Installing Java JDK 7 For Mac OS X - mvn -version still shows java version 1.6.0_31
... Setting the JAVA_HOME value in .bashrc doesn't work on OS X as it does in linux. Also no where can I find the path to the JDK 7 installed by Oracle.
– Bruce Phillips
Apr 26 '12 at 21:55
...
How do I add an existing Solution to GitHub from Visual Studio 2013
...a lot for GIT, so here are the simple steps:
Pre-requisites...
If it's Linux or MAC, you should have git packages installed on your machine
If it's Windows, you can try to download git bash software
Now,
Goto Github.com
In your account, create a New Repository
Don't create any file inside th...
How Does Modulus Divison Work
... (where the fractional part of the result after dividing is discarded). In Python 3: 16 // 6 >>> 2 and 16 / 6 >>> 2.6666666666666665
– bryik
Nov 6 '16 at 20:30
...
Number of lines in a file in Java
...es 0.35 seconds, versus 2.40 seconds when using readLines(). Just for fun, linux' wc -l command takes 0.15 seconds.
public static int countLinesOld(String filename) throws IOException {
InputStream is = new BufferedInputStream(new FileInputStream(filename));
try {
byte[] c = new byt...
Cannot import the keyfile 'blah.pfx' - error 'The keyfile may be password protected'
... following.
Get a copy of OpenSSL. It is available for Windows. Or use a Linux box as they all pretty much all have it.
Run the following to export to a key file:
openssl pkcs12 -in certfile.pfx -out backupcertfile.key
openssl pkcs12 -export -out certfiletosignwith.pfx -keysig -in backupcertfile...