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Author: plutesci

Arithmetic_demo.bash

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+#!/bin/bash
+
+first_num=0
+second_num=0
+
+echo -n "Enter the first number --> "
+read first_num
+echo -n "Enter the second number -> "
+read second_num
+
+echo "first number + second number = $((first_num + second_num))"
+echo "first number - second number = $((first_num - second_num))"
+echo "first number * second number = $((first_num * second_num))"
+echo "first number / second number = $((first_num / second_num))"
+echo "first number % second number = $((first_num % second_num))"
+echo "first number raised to the"
+echo "power of the second number   = $((first_num ** second_num))"

BuildMenuEnhanced_demo.bash

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+#!/bin/bash
+
+press_enter()
+{
+	echo -en "\nPress Enter to continue"
+	read
+	clear
+}
+
+selection=
+until [ "$selection" = "0" ]; do
+	echo "
+	PROGRAM MENU
+	1 - display free disk space
+	2 - display free memory
+
+	0 - exit program
+"
+	echo -n "Enter selection: "
+	read selection
+	echo ""
+	case $selection in
+	1 ) df ; press_enter ;;
+	2 ) free ; press_enter ;;
+	0 ) exit ;;
+	* ) echo "Please enter 1, 2, or 0"; press_enter
+	esac
+done

BuildingMenu_demo.bash

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+#!/bin/bash
+
+selection=
+until [ "$selection" = "0" ]; do
+	echo "
+	PROGRAM MENU
+	1 - Display free disk space
+	2 - Display free memory
+
+	0 - exit program
+"
+	echo -n "Enter selection: "
+	read selection
+	echo ""
+	case $selection in
+	    1 ) df ;;
+	    2 ) free ;;
+	    0 ) exit ;;
+	    * ) echo "Please enter 1, 2, or 0"
+	esac
+done

CasePattern_demo.bash

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+#!/bin/bash
+
+echo -n "Type a digit or a letter > "
+read character
+case $character in
+				    # Check for letters
+	[[:lower:]] | [[:upper:]] ) echo "You typed the letter $character"
+				    ;;
+
+				    # Check for digits
+	[0-9] )			    echo "You typed the digits $character"
+				    ;;
+
+				    # Check for anything else
+	* )			    echo "You did not type a letter or a digit"
+esac 

CompareTwoDir_demo.bash

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+#!/bin/bash
+
+# cmp_dir - program to compare two directories
+
+# Check for required arguments
+if [ $# -ne 2 ]; then
+	echo  "usage: $0 directory_1 directory_2" 1>&2
+	exit 1
+fi
+
+# Make sure both arguments are directories
+if [ ! -d $1 ]; then
+	echo "$1 is not a directory!" 1>&2
+	exit 1
+fi
+
+if [ ! -d $2 ]; then
+	echo "$2 is not a directory!" 1>&2
+	exit 1
+fi
+
+# Process each file in directory_1, comparing it to directory_2
+missing=0
+for filename in $1/*; do
+	fn=$(basename "$filename")
+	if [ -f "$filename" ]; then
+		if [ ! -f "$2/$fn" ]; then
+			echo "$fn is missing from $2"
+			missing=$((missing + 1))
+		fi
+	fi
+done
+echo "$missing files missing"

DetectCommLineArgs1_demo.bash

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+#!/bin/bash
+
+if [ $# -gt 0 ]; then
+	echo "Your command line contains $# arguments"
+else
+	echo "Your command line contains no arguments"
+fi

DetectCommLineArgs_demo.bash

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+#!/bin/bash
+
+if [ "$1" != "" ]; then
+	echo "Positional parameter 1 contains something"
+else
+	echo "Positional parameter 1 is empty"
+fi

FileCommandList1_demo.bash

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+#!/bin/bash
+
+for filename in "$@"; do
+	result=
+	if [ -f "$filename" ]; then
+		result="$filename is a regular file"
+	else
+		if [ -d "$filename" ]; then
+			result="$filename is a directory"
+		fi
+	fi
+	if [ -w "$filename" ];then
+		result="$result and it is writable"
+	else
+		result="$result and it is not writable"
+	fi
+	echo "$result"
+done

FileCommandList_demo.bash

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+#!/bin/bash
+
+for i in "$@"; do
+	echo $i
+done

FlowCont3_demo.bash

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+#!/bin/bash
+
+for i in word1 word2 word3; do
+	echo $1
+done

FlowControl2_demo.bash

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+#!/bin/bash
+
+echo -n "Enter a number between 1 and 3 inclusive > "
+read character
+if [ "$character" = "1" ]; then
+	echo "You entered one."
+elif [ "$character" = "2" ]; then
+	echo "You entered two."
+elif [ "$character" = "3" ]; then
+	echo "You did not enter a number between 1 and 3."
+fi

FlowControl2_demo2.bash

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+#!/bin/bash
+
+echo -n "Enter a number between 1 and 3 inclusive > "
+read character
+case $character in
+	1 ) echo "You entered one."
+	    ;;
+	2 ) echo "You entered two."
+	    ;;
+	3 ) echo "You entered three."
+	    ;;
+	* ) echo "You did not enter a number between 1 and 3." 
+esac

FunctionsSample.sh

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+#!/bin/sh
+# This doesn't, Work!
+# error is the function not found
+#function quit {
+#	exit
+#}
+#function hello {
+#	echo Hello!
+#}
+#hello
+#quit
+#echo foo
+#
+#Functions with parameters sample.. From same webpage two examples.
+#Im gussing this dont work either http://tldp.org/HOWTO/Bash-Prog-\
+#Intro-HOWTO-8.html#ss8.1 or How NOt TO Write Bash
+function quit {
+	exit
+}
+function e {
+	echo $1
+}
+e Hello
+e World
+quit foo
+
+# function not found line 2

I want to write a bash program weird output

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+#!/bin/sh
+# This Program is to Show user the commands to create a bash script
+# to execute this program type at terminal ./'I want to write a bash program
+clear
+echo #########################################################################
+echo Showing the command line steps to start a Hello World program
+echo *************************************************************************
+echo #########################################################################
+echo Where you see test.sh, Please rename test.sh
+echo *************************************************************************
+echo #########################################################################
+echo Follow Steps Below...
+echo *************************************************************************
+echo "'#!/bin/sh' > test.sh 	# change test.sh"
+echo "'echo Hello World' >> test.sh	# change test.sh"
+echo chmod 755 test.sh	# change test.sh
+echo nano test.sh	# change test.sh
+
+# I want to add an option to ask user if they want to start a new bash \
+# program yes \ no? 
+# if yes\Yes query user for new name, What to call this bash ? ...... 

ICODE

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+#!/bin/bash 
+# This Program is to Show user the commands to create a bash script
+# to execute this program type at terminal ./'I want to write a bash program
+clear
+echo Showing the command line steps to start a Hello World program
+echo Where you see test.sh, Please rename test.sh
+echo Follow Steps Below...
+echo ####################
+echo "echo '#!/bin/bash' > test.sh 	# change test.sh"
+echo "'echo Hello World' >> test.sh	# change test.sh"
+echo chmod 755 test.sh	# change test.sh
+echo nano test.sh	# change test.sh
+# exec '#!/bin/bash' > test.sh
+
+# I want to add an option to ask user if they want to start a new bash \
+# program yes \ no? 
+# if yes\Yes query user for new name, What to call this bash ? ...... 
+
+#today() {
+#echo -n "Today's date is: "
+#date +"%A, %B %-d, %Y"
+#}
+#set +x
+echo -n "Please Enter a Filename For Your New Bash Script > "
+read text
+echo "Your New Bash Script is named: $text"
+
+# I need to figure out how to add .bash to the $text varable 
+
+selection=
+until [ "$selection" = "0" ]; do
+echo "
+ICODE MENU
+1 - Start a new Bash Script
+2 - Start a new HTML Document
+3 - start a new Python Idle
+4 - Start a new php program
+5 - start a New Ruby Code
+
+0 - exit program
+"
+	echo -n "Enter selection: "
+	read selection
+	echo ""
+	case $selection in
+	1 ) nano $text:.bash ;;
+	2 ) nano ;;
+	3 ) idle ;;
+	4 ) nano ;;
+	5 ) nano ;;
+	0 ) exit ;;
+	* ) echo "Please enter 1, 2, 3, 4, 5, or 0"
+	esac
+done

IcodeEX.bash

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+#!/bin/bash -       
+#title           :mkscript.sh
+#description     :This script will make a header for a bash script.
+#author		 :bgw
+#date            :20111101
+#version         :0.4    
+#usage		 :bash mkscript.sh
+#notes           :Install Vim and Emacs to use this script.
+#bash_version    :4.1.5(1)-release
+#==============================================================================
+
+today=$(date +%Y%m%d)
+div=======================================
+
+/usr/bin/clear
+
+_select_title(){
+
+    # Get the user input.
+    printf "Enter a title: " ; read -r title
+
+    # Remove the spaces from the title if necessary.
+    title=${title// /_}
+
+    # Convert uppercase to lowercase.
+    title=${title,,}
+
+    # Add .sh to the end of the title if it is not there already.
+    [ "${title: -3}" != '.sh' ] && title=${title}.sh
+
+    # Check to see if the file exists already.
+    if [ -e $title ] ; then 
+        printf "\n%s\n%s\n\n" "The script \"$title\" already exists." \
+        "Please select another title."
+        _select_title
+    fi
+
+}
+
+_select_title
+
+printf "Enter a description: " ; read -r dscrpt
+printf "Enter your name: " ; read -r name
+printf "Enter the version number: " ; read -r vnum
+
+# Format the output and write it to a file.
+printf "%-16s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%-16s%-8s\n\
+%s\n\n\n" '#!/bin/bash -' '#title' ":$title" '#description' \
+":${dscrpt}" '#author' ":$name" '#date' ":$today" '#version' \
+":$vnum" '#usage' ":./$title" '#notes' ':' '#bash_version' \
+":${BASH_VERSION}" \#$div${div} > $title
+
+# Make the file executable.
+chmod +x $title
+
+/usr/bin/clear
+
+_select_editor(){
+
+    # Select between Vim or Emacs.
+    printf "%s\n%s\n%s\n\n" "Select an editor." "1 for Vim." "2 for Emacs."
+    read -r editor
+
+    # Open the file with the cursor on the twelth line.
+    case $editor in
+        1) vim +12 $title
+            ;;
+        2) emacs +12 $title &
+            ;;
+        *) /usr/bin/clear
+           printf "%s\n%s\n\n" "I did not understand your selection." \
+               "Press <Ctrl-c> to quit."
+           _select_editor
+            ;;
+    esac
+
+}
+
+_select_editor