Working remotely (via SSH) poses numerous challenges:
- running programs are killed if the session is terminated or connection is lost
- you need to open many connections if you want to run more things at the same time
- you cannot resume the session from different machine
All above problems have a simple solution in Linux, called screen. Screen provides virtual terminals that can be disconnected & resumed later.
- Install screen
- Prepare configuration file
- Create new virtual terminal
- Reattach to previous session
sudo apt-get install screen
Below you can find example configuration file. This will enable changing the windows with F5/F6, scrolling and it will display some useful information in the bottom of your screen terminal. To enable it, just paste below text to file: ~/.screenrc
#para tener scroll-back
termcapinfo xterm|xterms|xs|rxvt ti@:te@
defscrollback 5048
##
### detach on hangup
autodetach on
##
### don't display the copyright page
startup_message off
##
### emulate .logout message
pow_detach_msg "Screen session of $LOGNAME $:cr:$:nl:ended."
##
#
# BARRA DE ESTADO v1
#### alternative caption, gives window list, LOGNAME and current date:
caption always "%u%{wk}%?%-Lw%?%{bw}%n*%f %t%?(%u)%?%{wk}%?%+Lw %= %{mk}host:%H Load:%l %{ck}%M%{wk} %{ck}%d %{gk}%c"
# BARRA DE ESTADO v2
#hardstatus alwayslastline
#hardstatus string "%{.bW}%-w%{.rW}%n %t%{-}%+w %=%{..G} %H %{..Y} %d/%m %C%a Load: %l"
#caption always "%3n %t%? @%u%?%? [%h]%?"a
#
termcapinfo xterm ti@:te@
defscrollback 1000
# Scroll up
bindkey -d "^[[5S" eval copy "stuff 5\025"
bindkey -m "^[[5S" stuff 5\025
# Scroll down
bindkey -d "^[[5T" eval copy "stuff 5\004"
bindkey -m "^[[5T" stuff 5\004
# Scroll up more
bindkey -d "^[[25S" eval copy "stuff \025"
bindkey -m "^[[25S" stuff \025
# Scroll down more
bindkey -d "^[[25T" eval copy "stuff \004"
bindkey -m "^[[25T" stuff \004
bindkey -k k5 prev # F5 for previous window
bindkey -k k6 next # F6 for next window
screen -S sessionName # create new window: Ctlr-A and C # detach session: Ctrl-A and D
screen -dr sessionName # list existing session: screen -dr
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