Category Archives: computing
Low Power PCs
Low power PCs: Tiny Green PC Raspberry Pi – approx 2 – 3.5 watts Aleutia – approx 10 watts Intel NUC – approx 11 watts LIVA Mini PC – approx 15 watts Asus Eee Box – idle approx. 20w, running approx. 22.7 – … Continue reading
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Samsung Note 2 unfortunately s note has stopped working
This obscure error can sometimes be fixed by the following steps: Go to Settings Click on Language and Input Click the cog image next to the Samsung keyboard options (even if greyed out) Click on Input Languages On English (UK), … Continue reading
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Vi Commands
Movement: h, j, k, l – left, down, up, right spacebar – right Copy/paste: Y – copy one or more lines p – paste line below current cursor P – paste line above current cursor Line numbers: :set number
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Linux Notes
Hard links: ln /path/file1 /path/file2 Associates one physical file with another name (file2). Both access the same file. Can’t be used with directories. Can’t cross file system boundaries. Soft (symbolic) links: ln -s /path/source /path/alias Creates an alias to a … Continue reading
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PHP Regular Expressions
Notes: A regular expression is enclosed between two forward slashes “//“. Hash signs # or tildes ~ can also be used (these characters are called delimiters). eg. $exp = “/php/“; – search for the occurence of string ‘php’ Special/meta-characters: * Match … Continue reading
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Google translate Firefox problem (not working on Apple Mac)
If the Google Translate drop down menu of languages does not open, or appears empty when the Google Translate tool is clicked in Firefox, the problem is usually caused by an issue with the Flash plugin, or the Flash plugin … Continue reading
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