zipizap

java -Dhttp.proxyHost=YourProxyIpOrUrl.com -Dhttp.proxyPort=8080 -Dhttps.proxyHost=YourProxyIpOrUrl.com -Dhttps.proxyPort=8080 -Xmx800m -jar minecraft.jar

zipizap

LOCAL_LISTENING_PORT=12345
REMOTE_USER="zipizap"
REMOTE_SERVER="my.server.com"
ssh -N -D $SOCKS_LISTENING_PORT $REMOTE_USER@$REMOTE_SERVER sleep 60

zipizap

source $BYOBU_PREFIX/share/byobu/keybindings/common
source $BYOBU_PREFIX/share/byobu/keybindings/f-keys.screen.disable
escape "^Aa"
register x "^A"
bindkey "^A"

zipizap

# The text
#
$ echo 'the lazy dog jumped the impossible river'
the lazy dog jumped     the impossible river

# The text dumped in hexadecimal
#
$ echo 'the lazy dog jumped the impossible river' | od -ct x1
0000000   t   h   e       l   a   z   y       d   o   g       j   u   m
         74  68  65  20  6c  61  7a  79  20  64  6f  67  20  6a  75  6d

zipizap

#######################################
## Add these lines into ~/.tmux.conf
#######################################
# set correct term
set -g default-terminal "screen-256color"
 # and add an alias into ~/.bashrc
 # alias 'tmux'='TERM=xterm-256color tmux'
 # see http://unix.stackexchange.com/questions/1045/getting-256-colors-to-work-in-tmux

zipizap

$env | grep VAR
# nothing

$ VAR1="my_v1" VAR2="my_v2" bash -c 'env | grep VAR'
VAR1=my_v1
VAR2=my_v2
# the command after VAR1 and VAR2 has those vars defined in its environment
# but the vars only exist in the environment of that command, and not in the
# "outside" environment, as can be seen:

zipizap

zipizap@lnxp:/tmp/depth0$ tree --charset ascii
.
|-- A_depth1
|   `-- A_depth2
|       `-- A_depth3
|-- B_depth1
|   `-- B_depth2
|       `-- B_depth3
`-- C_depth1
    `-- C_depth2

zipizap

zipizap@lnxp:/tmp$ ./a.sh
Handler for CTRL-C is defined - press CTRL-C or wait 5 seconds to continue
^C------- handler_CtrlC -------
>> Control-C was pressed. Exiting
zipizap@lnxp:/tmp$
zipizap@lnxp:/tmp$
zipizap@lnxp:/tmp$
zipizap@lnxp:/tmp$
zipizap@lnxp:/tmp$
zipizap@lnxp:/tmp$ ./a.sh

zipizap

#!/bin/bash

# capture SIGINT (emitted when CTRL-C)
function handler__CtrlC {
  echo "------- handler_CtrlC -------"
  echo ">> Control-C was pressed. Exiting"
  exit 1
}
trap handler__CtrlC SIGINT
echo "Handler for CTRL-C is defined - press CTRL-C or wait 5 seconds to continue"

zipizap

# condition && command-if-true || command-if-false
#
# CAUTION: condition && ... || ... works, but
#          condition || ... && ... does NOT work!
#
$ [[ "your" == "condition" ]] && echo "executed if true" || echo "executed if false"
executed if false
$ [[ "your" == "your" ]] && echo "executed if true" || echo "executed if false"
executed if true