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MySQL Database won't start in XAMPP Manager-osx

...mputername>.local.pid) My Solution: In /Applications/XAMPP/xamppfiles/etc/my.cnf change user = <uid> s that <uid> is uid from id command. $ id uid=... $ vim /Applications/XAMPP/xamppfiles/etc/my.cnf ... s...
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Why is String immutable in Java?

...ring in network connections, database connection urls, usernames/passwords etc. If it were mutable, these parameters could be easily changed. Synchronization and concurrency: making String immutable automatically makes them thread safe thereby solving the synchronization issues. Caching: when compi...
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Can I “multiply” a string (in C#)?

... the scenes, then mutates it. It doesn't work like a regular List<T> etc. – Marc Gravell♦ Feb 10 '09 at 16:05 1 ...
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How do I check whether a file exists without exceptions?

... exists(). Here is some simple REPL output: >>> os.path.isfile("/etc/password.txt") True >>> os.path.isfile("/etc") False >>> os.path.isfile("/does/not/exist") False >>> os.path.exists("/etc/password.txt") True >>> os.path.exists("/etc") True >>&gt...
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Query EC2 tags from within instance

...NCE_ID" --output=text | sed -r 's/TAGS\t(.*)\t.*\t.*\t(.*)/\1="\2"/' > /etc/ec2-tags You need the AWS CLI tools installed on your system: you can either install them with a packages section in a cloud-config file before the script, use an AMI that already includes them, or add an apt or yum com...
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Is PowerShell ready to replace my Cygwin shell on Windows? [closed]

...n PowerShell, or just stick with Cygwin /Perl scripts/Unix shell scripts, etc. 18 Answers ...
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How to edit multi-gigabyte text files? Vim doesn't work =( [closed]

...ndle large files pretty well. I just edited a 3.4GB file, deleting lines, etc. Three things to keep in mind: Press Ctrl-C: Vim tries to read in the whole file initially, to do things like syntax highlighting and number of lines in file, etc. Ctrl-C will cancel this enumeration (and the syntax ...
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Finding current executable's path without /proc/self/exe

... SunOS, Solaris, SYSV, HPUX, Concentrix, SCO, Darwin, AIX, OS X, Nextstep, etc. And with a little modification probably VMS, VM/CMS, DOS/Windows, ReactOS, OS/2, etc. If a program was launched directly from a GUI environment, it should have set argv[0] to an absolute path. Understand that almos...
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Are the PUT, DELETE, HEAD, etc methods available in most web browsers?

I've seen a couple questions around here like How to debug RESTful services , which mentions: 7 Answers ...
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Why use AJAX when WebSockets is available?

...tive games, dynamic media streams, bridging to existing network protocols, etc). However, there is certainly an overlap in purpose between WebSockets and AJAX/Comet. For example, when the browser wants to be notified of server events (i.e. push) then Comet techniques and WebSockets are certainly bo...