This will take the QT field from Exim mail routing logs and create QT_seconds, QT_minutes, QT_hours and QT_int

check if a given url is for a img type of jpeg, jpg, bmp, png

check if a given url is for a img type of jpeg, jpg, bmp, png

Get numbers formated as dates with dots and Group them by year, month and day.

Replace all the characters but digits and minus sign.

Match feet and inches, including fractions or decimals

In Dired mode, M-x occur .*\.html$ whould show only ".html" files.

Find commented SQL code columns ending with comma ++ -- max(case when promo_temp.ph_bus_unt = 'ZZZ' ++ -- then promo_temp.ph_prom_dt ++ -- end) lst_prom_dt1,...