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hi i was wondering when you run a command like "ls" how does *unix system know its path

when compiling my application how can i make it run from terminal like this "appname args" instead of...

does anyone know how i would go about putting output from a popen into a text box in a gui in qt?

anyone know how to paste from clipboard?

i am making a qt gui app so when they click paste it will dump the clipboard contents into a textbox

that zlib looks usefull i had a look at the examples but could not manage to work out how to zip up a specified folder, can you help me out?

--update

i did a little searching apparently zlip...

does anyone know how to zip up a folder using c? or zipping multiple files then remove them?

ps, not the popen(zip bla) way

Does anyone know how to use qt creator to create a c++ app that can call a command line app

eg could have a simple gui and you type in aurl then it is passed to wget like

wget "what ever domain...

Can anyone tell me the regex pattern to get the inside part of src from a image tag in html

so <img src="urlgoeshere">

i need regex to get urlgoeshere

thanks