vesta/bin/v-list-sys-info

#!/bin/bash
# info: list system os
# options: [FORMAT]
#
# The function checks available updates for vesta packages.


#----------------------------------------------------------#
#                    Variable&Function                     #
#----------------------------------------------------------#

# Argument definition
format=${1-shell}

# Includes
source $VESTA/func/main.sh

# JSON list function
json_list() {
    echo '{'
    echo '    "sysinfo": {
        "HOSTNAME": "'$HOSTNAME'",
        "OS": "'$OS'",
        "VERSION": "'$VERSION'",
        "ARCH": "'$ARCH'",
        "UPTIME": "'$UPTIME'",
        "LOADAVERAGE": "'$LOADAVERAGE'"
        }'
    echo '}'
}

# SHELL list function
shell_list() {
    echo "HOSTNAME   OS   VER   ARCH  UPTIME   LA"
    echo "--------   --   ---   ----  ------   --"
    echo "$HOSTNAME $OS $VERSION $ARCH $UPTIME $LOADAVERAGE"
}

# PLAIN list function
plain_list() {
    echo -e "$HOSTNAME\t$OS\t$VERSION\t$ARCH\t$UPTIME\t$LOADAVERAGE"
}

# CSV list function
csv_list() {
    echo "HOSTNAME,OS,VERSION,ARCH,UPTIME,LOADAVERAGE"
    echo "$HOSTNAME,$OS,$VERSION,$ARCH,$UPTIME,$LOADAVERAGE"
}


#----------------------------------------------------------#
#                       Action                             #
#----------------------------------------------------------#

# Check hostname
HOSTNAME=$(hostname)

# Check OS/Release
if [ -e '/etc/redhat-release' ]; then
    if [ ! -z "$(grep CentOS /etc/redhat-release)" ]; then
        OS='CentOS'
    else
        OS="RHEL"
    fi
    VERSION=$(cat /etc/redhat-release| tr ' ' '\n' |grep [0-9])
else
    if [ "$(lsb_release -si)" == "Ubuntu" ] && [ -e '/etc/debian_version' ]; then
        OS="Ubuntu"
        VERSION=$(grep DISTRIB_RELEASE /etc/lsb-release| cut -f 2 -d '=')
    else
        distro=$(head -n1 /etc/issue |cut -f 1 -d ' ')
        if [ "$distro" = 'Debian' ]; then
            OS="Debian"
            VERSION=$(cat /etc/debian_version)
        else
            OS='UNKNOWN'
            VERSION='UNKNOWN'
        fi
    fi
fi

# Check architecture
ARCH=$(arch)

# Check uptime
UPTIME=$(cat /proc/uptime |cut -f 1 -d ' '|cut -f 1 -d .)
UPTIME="$(echo $UPTIME / 60 |bc)"

# Check LoadAverage
LOADAVERAGE=$(cat /proc/loadavg |cut -f 1 -d ' ')

# Listing data
case $format in
    json)   json_list ;;
    plain)  plain_list ;;
    csv)    csv_list ;;
    shell)  shell_list |column -t ;;
esac

#----------------------------------------------------------#
#                       Vesta                              #
#----------------------------------------------------------#

exit