linux1

gistfile1.txt

**emacs bash
ctl-e   end
ctl-u   clear to beg
ctl-w   delete word backward
alt-d   delete word forward

**history
*! susbtitution
!$ last word
!42:p   print, edit see histverify


**history settings
help history
alias h='history' >> .bashrc
HISTCONTROL=ignoreboth:erasedups >> .bashrc
shopt -s histverify >> .bashrc
reload bashrc:  source ~/.bashrc, or . ~/.bashrc
off: set +o history, on: set -o history
sudo vim $HISTFILE
history -a ppend to file, -c lear list, -r read and append to list, -d elete, 
-n read update from file?, -s save args to list
history -p rint \!88 \!89 >> cmd
* so print to cmd file, and then clear and read in to list

**running commands from file
sed -n '<#> p' | bash
history -s "$(sed -n '<#> p')"
vim :set number

**jobs
fg, bg, ctl-Z 
kill %1
jobs -l
kill <pid> -9

**special
sed: Stream editor