To reset all shortcut definitions in evince, run rm ~/.config/evince/accels GCC would complain if you define a variable without actually using it. To silience it, use (void)var; DNS is not working in VirtualBox: Run VBoxManage modifyvm "VM name" --natdnshostresolver1 on Ref A useful link talking about ravlue reference in C++11 http://thbecker.net/articles/rvalue_references/section_01.html To clear disk cache in Linux: Run sudo sh -c 'echo 3 > /proc/sys/vm/drop_caches' Ref "screen-256color not found": Run infocmp xterm-256color > screen-256color.ti on a machine without this error, copy the file to the target machine and then run tic screen-256color.ti Ref Just switch to fcitx from ibus. I like a theme called 'anran'. If fcitx cannot follow the cursor on Firefox, turn on preedit, as said in the official wiki. Just played with a vim plugin called youcompleteme, for C++ autocomplete, which is quite powerful. Also I installed vund...
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