Instantly load bash history of one shell into another running shell

$ history -a #in one shell , and $ history -r #in another running shell
By default bash history of a shell is appended (appended on Ubuntu by default: Look for 'shopt -s histappend' in ~/.bashrc) to history file only after that shell exits. Although after having written to the history file, other running shells do *not* inherit that history - only newly launched shells do. This pair of commands alleviate that.
Sample Output
## In shell one ##

$ find -iname "*pdf*"   
<some output>

$ history -a   #You don't need this if you set PROMPT_COMMAND="history -a;$PROMPT_COMMAND" manually or in your ~/.profile or ~/.bashrc


## Switch to another running shell ##

$ #Up arrow does not show the above 'find' command, so do following:
$ history -r
$ find -iname "*pdf*"   #Up arrow now shows the 'find' command

10
By: b_t
2011-11-05 01:19:30

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Antonioomez · 94 weeks and 6 days ago
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Alyssalauren · 24 weeks and 6 days ago
Building on the success of my first article, I'll be talking about a quick way to get mybkexperience.com survey history from one shell into another running shell. For example, imagine you want to load the history for one shell into another for use in a reboot script or an automated cron job.
Eerdson · 6 weeks and 3 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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