On Wed, 29 Aug 2018, Warren Toomey wrote:
This reminded me of other semi-cryptic commands. I
remember mistyping
"kill -1 1" as "kill -9 1" with the inevitable consequences.
Last week I typed "crontab -" (missed the "e" for -e) and then
without
realizing what happened Ctrl-C didn't work, typed Ctrl-D. Argh. Lost
around 20 crontabs which were in a directory I didn't backup. Luckily I
had a syslog file with my recent jobs to recreate it, but lost all my
comments and commented-out entries (for over ten years).