Improve glog alias by creating a function for it that uses fzf to
directly preview the full commit using git-show. The function also
allows to select one of the commits and putting its abbreviated commit
hash into the clipboard.
Add hint if reboot is necessary after updating.
Add alias to grep a date string.
Always scale images opened with feh to fit the window.
Add alias to open a "temporary" shell in alternate mode that does not
mess with the scrollback history.