To turn on infinite history, add this to your ~/.bash_profile file :
# infinite timestamped history
export HISTTIMEFORMAT='%F %T '
When next you log in, your terminal history will be saved forever! I'm up to about 30,000 commands typed in the last two years.
Today I was looking up that command, you know, that one where you can hop in to Docker container running the main appserver, for debugging and testing. IE: run a Bash shell on a named container.
I knew it was "docker exec..." something:
history | egrep docker.*exec
26790 2016-08-31 16:18:12 docker exec -it e3f bash
Oops, I found the command where I created a Bash shell in a specific Docker container. I'd have to used "docker ps", found the specific ID, and typed a second command to run a shell. Lame.
How about running a command that uses docker ps to list containers, and gave it a "filter", so that the same command always works?
history | egrep docker.*exec.*filter
24559 2016-08-05 14:07:37 docker exec -it $(docker ps --filter ancestor=theblacktux_web,status=running --quiet) bash
The above command will create a Bash shell in the currently running Docker container, where the container is running a custom version of the "theblacktux_web" appserver image.