TerminalScripts

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Warning.png WARNING
This is recommended only for advanced users, proceed with caution.


The scripts below are now included in the Amahi Terminal Scripts application. You might also find ShellCheck helpful when developing scripts.

Use of script files provides many useful results. Below is a small collection that should enhance your command line experience.

README1ST

Terminal Scripts Application README FILE

The following scripts are included:

  • automysqlbackup: Backup multiple MySQL databases on a given schedule.
  • diskspace: Displays graphical depiction of all drive space used and remaining.
  • dnflog: Shows latest Fedora updates that have been applied.
  • dsalert: Sends email if a disk has used a set percentage of space. Requires the system have outgoing email capability.
  • folderspace: Displays how much space a specific folder occupies.
  • hdaupdates: Shows latest Amahi updates to your HDA.
  • smartchk: Provides health status of disks drives set in the script.
  • systeminfo: Displays various criteria about the system, to include host name, IP address, uptime, etc.
  • weather: Shows weather for a given location as preset in the script.


ALL the above scripts may require some modification for your system.

  • systeminfo and weather script has a variable that must be changed for your geographical area.
  • smartchk requires modification to list all mounted hard disk drives in your system.
  • automysqlbackup has various settings will need adjusted for your system. See the [[1]] page for details.


Dependencies Installed for Scripts

  • sysinfo: pciutils and procinfo
  • smartchk: smartmontools
  • dsalert: smartmontools


dos2unix (installed with this application)

What is it?

dos2unix is a tool to convert text files from DOS line endings (carriage return + line feed) to Unix line endings (line feed). It is also capable of conversion between UTF-16 to UTF-8. Invoking the unix2dos command can be used to convert from Unix to DOS. This tool comes in handy when sharing files between Windows and Linux machines.

Why would I need this tool?

While editing files on a machine running some form of Windows and uploading them to a Linux server is convenient, it can cause unforeseen complications. Windows-based text editors put special characters at the end of lines to denote a line return or newline. Normally harmless, some applications on a Linux server cannot understand these characters and can cause the service to not respond correctly. There is a simple way to correct this problem: dos2unix.

The dos2unix command is a simple way to make sure that files that have been edited and uploaded from a Windows machine to a Linux machine work and behave correctly.

Disk Space

#!/bin/bash
Black='\e[0;30m'
Blue='\e[0;34m'
Green='\e[0;32m'
Cyan='\e[0;36m'
Red='\e[0;31m'
Purple='\e[0;35m'
Brown='\e[0;33m'
Light_Gray='\e[0;37m'
Dark_Gray='\e[1;30m'
Light_Blue='\e[1;34m'
Light_Green='\e[1;32m'
Light_Cyan='\e[1;36m'
Light_Red='\e[1;31m'
Light_Purple='\e[1;35m'
Yellow='\e[1;33m'
White='\e[1;37m'
Blink='\033[5m'
Bold='\033[1m'
Underline='\033[4m'
No_Color='\033[0m'
TermSize=`tput cols`
if [ $TermSize -gt "81" ]; then
	TermSize=81
fi
function Print {
	# Disk I don't care about.
	if [ $DISK = "none" ] || [ $DISK = "/dev/sda3" ] || [ $DISK = "/dev/pts" ] || [ $DISK = "/dev/shm" ] || [[ $DISK =~ /dev/sr.* ]]; then
		continue
	fi
	read SIZE USED FREE PERCENT <<< $(df -hP 2> /dev/null|grep $DISK|awk '{print $2" "$3" "$4" "$5}')
	PERCENT=$(echo $PERCENT|sed s/%//)
	BarSize=$(echo "($PERCENT*($TermSize-3))/100"|bc)
	if [ "$PERCENT" -gt "90" ]; then
		Color=$Light_Red
	elif [ "$PERCENT" -gt "70" ]; then
		Color=$Yellow
	else
		Color=$Light_Green
	fi
	echo "Partition: $DISK"
	#echo
	echo -ne "Total size: $SIZE | "
	echo -ne "Used space: $USED | "
	echo -ne "Free space: ${Color}$FREE${No_Color} | "
	echo -ne "Used space percent: $PERCENT%"
	echo
	echo -ne "["
	for i in `seq 1 $BarSize`; do
		echo -ne "${Color}#"
		echo -ne "${No_Color}"
	done
	for i in `seq 1 $(echo "$TermSize-$BarSize-3"|bc)`; do
		echo -ne "="
	done
	echo "]"
	echo -ne "${No_Color}"
	echo
}
echo
if [ "$1" != "" ]; then
	DISK=$1
	Print
else
	for DISK in $(mount 2> /dev/null | grep "^/dev/" | awk '{print $1}'); do
		Print
	done
fi

System Info

#!/bin/sh
# Variables (server default)
TEMP="0"  # 0 for Farenheit, 1 for Celcius
LOCCOD="95110"
# Find your own LOCCOD (location code) at the end of
# the url here: http://www.accuweather.com/rss-center.asp
# If code has a space; replace with %20
#
# Variables
HOSTNAME=`hostname -f`
IP_ADDRS=`ifconfig | grep 'inet addr' | grep -v '255.0.0.0' | cut -f2 -d':' | awk '{print $1}'`
IP_ADDRS=`echo $IP_ADDRS | sed 's/\n//g'`
CPUS=`cat /proc/cpuinfo | grep processor | wc -l | awk '{print $1}'`
CPU_MHZ=`cat /proc/cpuinfo | grep MHz | tail -n1 | awk '{print $4}'`
CPU_TYPE=`cat /proc/cpuinfo | grep vendor_id | tail -n 1 | awk '{print $3}'`
CPU_TYPE2=`uname -m`
OS_NAME=`uname -s`
OS_KERNEL=`uname -r`
BOOT=`procinfo | grep Bootup | sed 's/Bootup: //g' | cut -f1-6 -d' '`
UPTIME=`uptime |cut -d , -f 1 | cut -c 2-`
PCIINFO=`lspci | cut -f3 -d':'`
# Read and process .motd.conf file and set variables
if [ -s "$HOME/.motd.conf" ] ; then
  file=`cat "$HOME/.motd.conf" | grep -Ev '^#' | grep -Ev '^$'`
  motd=`echo "$file" | grep -Ei '^motd=.+' | sed -e 's/motd=//i' -re 's/.*(0).*/\1/'`
  if [ "$motd" == "0" ] ; then
  process="0"
  usage="0"
  weather="0"
  else
  process=`echo "$file" | grep -Ei '^process=.+'    | sed -e 's/process=//i' -re 's/.*(0).*/\1/'`
  usage=  `echo "$file" | grep -Ei '^disk usage=.+' | sed -e 's/disk usage=//i' -re 's/.*(0).*/\1/'`
  weather=`echo "$file" | grep -Ei '^weather=.+'    | sed -e 's/weather=//i' -re 's/.*(0).*/\1/'`
  TEMPu=`  echo "$file" | grep -Ei '^TEMP=.+'       | sed -e 's/TEMP=//i' -re 's/.*([01]).*/\1/'`
  LOCCODu=`echo "$file" | grep -Ei '^LOCCOD=.+'     | sed -e 's/LOCCOD=//i' -re 's/["?](.+)["?]/\1/'`
  if [ $TEMPu != "" ] ; then
    TEMP="$TEMPu"
  fi
  if [ $LOCCODu != "" ] ; then
    LOCCOD="$LOCCODu"
  fi
  fi
fi
#print it out
echo
echo "\033[0;36mHostname         : \033[0;37m$HOSTNAME"
echo "\033[0;36mHost Address(es) : \033[0;37m$IP_ADDRS"
echo "\033[0;36mOS Name          : \033[0;37m$OS_NAME"
echo "\033[0;36mKernel Version   : \033[0;37m$OS_KERNEL"
echo "\033[0;36mCPU Type         : \033[0;37m$CPU_TYPE $CPU_TYPE2 $CPU_MHZ MHz"
echo "\033[0;36mNumber of CPUs   : \033[0;37m$CPUS"
# Display Memory Stats
if [ "$memory" != "0" ] ; then
  memory=`free -m`
  echo "\033[0;36mMemory MB........: \033[0;37m`echo "$memory" | grep 'Mem: ' \
  | awk '{print "Ram used: "$3" free: "$4}'`   `echo "$memory" | grep 'Swap: ' \
  | awk '{print "Swap used: "$3" free: "$4}'`"
fi
# Display Usage of Home Directory
if [ "$usage" != "0" ] ; then
  du -sh $HOME | awk '{print "\033[0;36mDisk Usage.......: \033[0;37mYou\47re using "$1"B in "$2}'
fi
# Display Processes
if [ "$process" != "0" ] ; then
  # (The 2 at end of the next two lines can be used to subtract out any 'offset')
  psa=$((`ps -A h | wc -l`-2))
  psu=$((`ps U $USER h | wc -l`-2))
  verb="are"
  if [ "$psu" -lt "2" ] ; then
    if [ "$psu" -eq "0" ] ; then
    psu=None
    else
    verb="is"
    fi
  fi
  echo "\033[0;36mProcesses........: \033[0;37m$psu of the $psa running $verb yours."
  echo
fi
# Display SSH Logins; System Uptime; System Load
if [ "$LogLoad" != "0" ] ; then
  LogLoad=`uptime`
  echo "\033[0;36mBootup           : \033[0;37m$BOOT"
  # Display System Uptime
  echo $LogLoad | grep -Eo 'up .+ user' \
  | sed -e 's/:/ hours /' -e 's/ min//' -re 's/^up\s+/\x1b[0;36mUptime...........:\x1b[0;37m /' \
  | sed -re 's/,\s+[0-9]+ user$/ minutes/' -e 's/,//g' -e 's/00 minutes//' \
  | sed -re 's/0([1-9] minutes)/\1/' -e 's/(1 hour)s/\1/' -e 's/(1 minute)s/\1/'
  # Display System Load
  echo $LogLoad | grep -Eo 'average: .+' \
  | sed -e 's/average:/\x1b[0;36mLoad.............:\x1b[0;37m/' -e 's/,//g' \
  | awk '{print $1, $2" (1 minute) "$3" (5 minutes) "$4" (15 minutes)"}'
  # Display SSH Logins
  echo $LogLoad | grep -Eo '[0-9]+ users?' \
  | awk '{print "\033[0;36mSSH Logins.......: \033[0;37m"$1, $2" currently logged in."}'
fi
# last login
lastlog -u $USER | tail -1 | awk '{print "\033[0;36mLast Login.......: \033[0;37m"$4, $5, $6, $7" from "$3}'
# Display Weather
if [ "$weather" != "0" ] ; then
  weather=`curl -s http://rss.accuweather.com/rss/liveweather_rss.asp\?TEMP\=${TEMP}\&locCode\=$LOCCOD \
  | grep -E '<description>(Currently|High)' \
  | sed -e 's/.*<description>\(.*\)/\1/' -e 's/\(.*\) &lt.*/\1/' -e 's/\(°\)//'`
  if [ "`echo "$weather" | wc -l`" -eq "3" ] ; then
    echo
    echo "\033[0;35mWeather..........: \033[0;37m`echo "$weather" | head -1`"
    echo "\033[0;35mToday............: \033[0;37m`echo "$weather" | head -2 | tail -1`"
    echo "\033[0;35mTomorrow.........: \033[0;37m`echo "$weather" | tail -1`"
  fi
fi
echo

Weather

#!/bin/sh
METRIC=0  # 0 for F, 1 for C
# Find your own code at the end of the url here http://www.accuweather.com/rss-center.asp
# If code has a space; replace with %20 
LOCCOD="95113"  #Example: ASI|RU|RS055|NIZHNY%20NOVGOROD
if [ -z $1 ] && [ -x $LOCCOD ] ; then
        echo
        echo "USAGE: $0 [locationcode]"
        echo
        exit 0;
elif [ ! -z $1 ] ; then
        LOCCOD=$1
fi
curl -s http://rss.accuweather.com/rss/liveweather_rss.asp\?metric\=${METRIC}\&locCode\=$LOCCOD \
| sed -n '/Currently:/ s/.*: \(.*\): \([0-9]*\)\([CF]\).*/\2°\3, \1/p'

HDA Updates

Here is a simple script that displays all of the file updates and additions made to your hda and the date they happened. It simply reads the hda-updates.log file and parses out only the relevant changes.

I use this script periodically so I can see what might have changed recently.

Installation

Log into your hda and create a bin directory under your home directory (if you don't already have one). The reason for this is that ~/bin is already in your $PATH when you log in, so it will automatically find any scripts you put there: 

   cd /usr/bin

Open up your favorite editor (I suggest gedit for this) and copy the code that follows into the editor. Save the file as hda-updates (or whatever you want to name it) and exit the editor.

Code: 

#!/usr/bin/python
#
# Dump update information from /var/log/hda-updates.log
#!/usr/bin/python
#
# Display the date and files that were modified/installed.
#
# Reads the hda-updates log file and parses out just the file updates/additions.
# It helps to see what has been modified and when.
#
# radioz
# 11/8/2010
#
# Updated by bigfoot65
# 9/26/2014
#
log = '/var/log/hda-updates.log'
line = '==============================================================================='
head = 'Package                 Arch            Version           Repository     Size'
cyan = '\033[1;36m'
blue = '\033[1;34m'
purple = '\033[1;35m'
white = '\033[1;37m'
print blue + line + white
print cyan + head + white
print blue + line + white
f = open(log, 'r')
lines = f.readlines()
f.close()
gotUpdates = False
firstUpdate = False
dateInfo = ''
for ll in lines :
	l = ll.strip()
	# Ignore dependency heading
	if l == 'Installing for dependencies:' :
		continue
	if l == '' :
		# A blank line terminates the updates for a particular date
		if gotUpdates :
			gotUpdates = False
		continue
	if gotUpdates :
		if firstUpdate :
			# Display the date above the first update
			print '%s:' % dateInfo
			firstUpdate = False
		# Reformat the file info slightly
		updateInfo = l.split()
		print purple + l + white
		print blue + line + white
	if 'hda update attempt' in l :
		# This header appears once per hour in the log. Very few represent real updates.
		# Save the date information in case this is a real update.
		dateInfo = ' '.join(l.split()[5:])
	if 'Updating:' in l :
		# This is a real update, set up the flags
		gotUpdates = True
		firstUpdate = True

Make the file executable: 

   chmod +x hda-updates

Now you can run it.

Example 

   hda-updates

Here is a snippet of its output on my system: 

===============================================================================
Package                 Arch            Version           Repository     Size
===============================================================================
Fri Sep 5 21:01:37 CDT 2014:
amahi-anywhere          x86_64          1.35-1            amahi          1.8 M
===============================================================================
Mon Sep 15 23:03:04 CDT 2014:
hda-ctl            x86_64            5.4.0-1            amahi            154 k
===============================================================================

Fedora Updates

#!/usr/bin/bash
head='  PACKAGE NAME\t\t\t\t\tDATE'
line='=============================================       ==============================='
cyan='\033[1;36m'
blue='\033[1;34m'
purple='\033[1;35m'
white='\033[1;37m'
echo -e ${blue}${line}${white}
echo -e ${purple}${head}${white}
echo -e ${blue}${line}${cyan}
rpm -qa --last | head
echo -e ${white}
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