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lsof survival guide [closed]

...iven port: lsof -iTCP -i :port lsof -i :22 To show connections to a specific host, use @host lsof -i@192.168.1.5 Show connections based on the host and the port using @host:port lsof -i@192.168.1.5:22 grepping for LISTEN shows what ports your system is waiting for connections on: lsof -i...
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What are .a and .so files?

...ically linked i.e when you compile your program with -c option in gcc. So, if there's any change in library, you need to compile and build your code again. The advantage of .so (shared object) over .a library is that they are linked during the runtime i.e. after creation of your .o file -o option ...
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Inconsistent Accessibility: Parameter type is less accessible than method

... If sounds like the type ACTInterface is not public, but is using the default accessibility of either internal (if it is top-level) or private (if it is nested in another type). Giving the type the public modifier would fix i...
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Get the date (a day before current time) in Bash

... if you have GNU date and i understood you correctly $ date +%Y:%m:%d -d "yesterday" 2009:11:09 or $ date +%Y:%m:%d -d "1 day ago" 2009:11:09 s...
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Exporting a function in shell

... The export -f feature is specific to Bash: parent #!/bin/bash plus1 () { echo $(($1 + 1)); } echo $(plus1 8) export -f plus1 ./child 14 21 child #!/bin/bash echo $(plus1 $(($1 * $2)) ) ...
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Creating a Radial Menu in CSS

...t it's another possible solution. I'm working on a compass interface right now that has a similar style of arc shaped buttons. I decided to develop it using Raphael and SVG. I created an arc shape in Illustrator, exported the SVG for it, grabbed the path definition for the arc from the exported SVG...
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Possible to do a MySQL foreign key to one of two possible tables?

...les... Joining the products to a specific type of filter is easy if you know which type you want to join to: SELECT * FROM Products INNER JOIN FiltersType2 USING (product_id) If you want the filter type to be dynamic, you must write application code to construct the SQL query. SQL requires that...
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What is the difference between MySQL, MySQLi and PDO? [closed]

What is the difference between MySQL, MySQLi and PDO ? 4 Answers 4 ...
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Execute bash script from URL

... bash <(curl -s http://mywebsite.com/myscript.txt) It may be clearer if you look at the output of echo <(cat /dev/null) share | improve this answer | follow ...
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How to write character & in android strings.xml

... If using CDATA then be aware that some characters are reserved. © -> © Refer to this article. w3schools.com/html/html_entities.asp – toidiu Dec 28 '15 at 19:20 ...