Category Archives: Computing
Featured image missing WordPress
Add to a theme’s functions.php file: // add featured image support add_theme_support( ‘post-thumbnails’ );
Apache reset/delete logs
http://httpd.apache.org/docs/1.3/misc/howto.html#logreset The correct procedure is to move the logfile, then signal Apache to tell it to reopen the logfiles. Apache is signaled using the SIGHUP (-1) signal. e.g. mv access_log access_log.old kill -1 `cat httpd.pid` Note: httpd.pid is a file containing the process id of the Apache httpd … Continue reading
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
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
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
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
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
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