06.22
sshでraspberryにアクセスした際に、.bash_profileを利用したリソース状況を表示させる。
以下、手順とコード。
コマンドは背景色を黄色にしてある。
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root@oz ~ # pwd /root root@oz ~ # vim .bash_profile # ~/.bashrc: executed by bash(1) for non-login shells. # If not running interactively, don't do anything [ -z "$PS1" ] && return # don't put duplicate lines or lines starting with space in the history. # See bash(1) for more options HISTCONTROL=ignoreboth # append to the history file, don't overwrite it shopt -s histappend # for setting history length see HISTSIZE and HISTFILESIZE in bash(1) HISTSIZE=1000 HISTFILESIZE=2000 # check the window size after each command and, if necessary, # update the values of LINES and COLUMNS. shopt -s checkwinsize # set variable identifying the chroot you work in (used in the prompt below) if [ -z "$debian_chroot" ] && [ -r /etc/debian_chroot ]; then debian_chroot=$(cat /etc/debian_chroot) fi # set a fancy prompt (non-color, unless we know we "want" color) case "$TERM" in xterm-color) color_prompt=yes;; esac # uncomment for a colored prompt, if the terminal has the capability; turned # off by default to not distract the user: the focus in a terminal window # should be on the output of commands, not on the prompt force_color_prompt=yes if [ -n "$force_color_prompt" ]; then if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then # We have color support; assume it's compliant with Ecma-48 # (ISO/IEC-6429). (Lack of such support is extremely rare, and such # a case would tend to support setf rather than setaf.) color_prompt=yes else color_prompt= fi fi if [ "$color_prompt" = yes ]; then PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\] \[\033[01;34m\]\w \$\[\033[00m\] ' else PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ ' fi unset color_prompt force_color_prompt # If this is an xterm set the title to user@host:dir case "$TERM" in xterm*|rxvt*) PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1" ;; *) ;; esac # enable color support of ls and also add handy aliases if [ -x /usr/bin/dircolors ]; then test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)" alias ls='ls --color=auto' #alias dir='dir --color=auto' #alias vdir='vdir --color=auto' alias grep='grep --color=auto' alias fgrep='fgrep --color=auto' alias egrep='egrep --color=auto' fi # Alias definitions. # You may want to put all your additions into a separate file like # ~/.bash_aliases, instead of adding them here directly. # See /usr/share/doc/bash-doc/examples in the bash-doc package. if [ -f ~/.bash_aliases ]; then . ~/.bash_aliases fi # enable programmable completion features (you don't need to enable # this, if it's already enabled in /etc/bash.bashrc and /etc/profile # sources /etc/bash.bashrc). if [ -f /etc/bash_completion ] && ! shopt -oq posix; then . /etc/bash_completion fi let upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)" let secs=$((${upSeconds}%60)) let mins=$((${upSeconds}/60%60)) let hours=$((${upSeconds}/3600%24)) let days=$((${upSeconds}/86400)) UPTIME=`printf "%ddays %02dh%02dm%02ds" "$days" "$hours" "$mins" "$secs"` # get the load averages read one five fifteen rest < /proc/loadavg echo "$(tput setaf 2) .~~. .~~. Host Name..........: `uname -n` '. \ ' ' / .' System.............: `uname -srm`$(tput setaf 1) .~ .~~~..~. Global IP Addresses: `/sbin/ifconfig eth0 | grep "inet addr" | cut -d ":" -f 2 | cut -d " " -f 1 | wget -q -O - http://ipv4.icanhazip.com/` : .~.'~'.~. : Today..............: `date +"%Y年%B%e日 %A %r"` ~ ( ) ( ) ~ Uptime.............: ${UPTIME} ( : '~'.~.'~' : ) Load Average & Temp: 1m/${one} 5m/${five} 15m/${fifteen} Temp:`exec -- /opt/vc/bin/vcgencmd measure_temp | cut -c "6-9"`°C ~ .~ ( ) ~. ~ Memory Resource....: Total/`free -h | grep Mem | awk {'print $2'}` Free/`free -h | grep Mem | awk {'print $4'}` Used/`free -h | grep Mem | awk {'print $3'}` ( : '~' : ) Swap...............: Total/`free -h | grep Swap | awk {'print $2'}` Free/`free -h | grep Swap | awk {'print $4'}` Used/`free -h | grep Swap | awk {'print $3'}` '~ .~~~. ~' Disk Resource SD...: Total/`df -h | grep root | awk {'print $2'}` Free/`df -h | grep root | awk {'print $4'}` Used/`df -h | grep root | awk {'print $3'}` '~' Disk Resource /var.: Total/`df -h | grep sda4 | awk {'print $2'}` Free/`df -h | grep sda4 | awk {'print $4'}` Used/`df -h | grep sda4 | awk {'print $3'}` $(tput sgr0)" root@oz ~ # |
Disk Resource等、一部自分用にカスタマイズしている。
新規にユーザを作成した場合も想定し、如何に作成したprofileをコピーしておく。
これで、新規ユーザにも適用される。
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root@oz ~ # cp .bash_profile /etc/skel/ |
最後に、個人的に下記表示が鬱陶しいので削除する。
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The programs included with the Debian GNU/Linux system are free software; the exact distribution terms for each program are described in the individual files in /usr/share/doc/*/copyright. Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent permitted by applicable law. |
下記ファイルに記載されているので削除してやれば終わり。
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root@oz ~ # vim /etc/motd |