Started övning 4, labb 6

Labb6/ovning1.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 1, labb 6
+# Arguments
+
+# Define some variables
+Arg1=$1
+Arg2=$2
+
+# Sanity checks
+if [ $# -ne 2 ]; then
+	printf "`basename $0` requires two arguments\n"
+	exit 2
+fi
+
+printf "Argument 1 is ${Arg1}\n"
+printf "Argument 2 is ${Arg2}\n"
+
+exit 0

Labb6/ovning2.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 2, labb 6
+# Check EUID and empty /tmp/testdir/
+
+# Sanity check
+if [ $EUID -ne 0 ]; then
+	echo "`basename $0` must run as root"
+	exit 2
+fi
+
+rm /tmp/testdir/* 2> /dev/null
+if [ $? -ne 0 ]; then
+	echo "Something went wrong when deleting files in /tmp/testdir/"
+	exit 2
+fi 
+
+exit 0

Labb6/ovning3.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 3, labb 6
+# Draw a line with a function
+
+# Define variables
+Nr=$1
+Iterate=0
+
+# Sanity checks
+if [ $# -ne 1 ]; then
+	echo "`basename $0` requires one argument"
+	exit 2
+fi
+
+if ! [ $Nr -eq $Nr &> /dev/null ]; then
+	echo "Use only integers"
+	exit 2
+fi
+
+# Define our functions
+draw()
+{
+	while [ $Iterate -lt $Nr ]; do
+		printf "*"
+		((Iterate++))
+	done  
+	printf "\n"
+}
+
+draw
+
+exit 0

Labb6/ovning4/calc.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Övning 4, labb 6
+# Make a calculator that could do add, substract, divide and times
+
+# Define our variables
+Nr1=$1
+Nr2=$2
+
+# Define our functions
+add()
+{
+	Sum=$((Nr1+Nr2))
+}
+
+sub()
+{
+	Sum=$((Nr1-Nr2))
+}
+
+div()
+{
+	Sum=$((Nr1/Nr2))
+}
+
+tim()
+{
+	Sum=$((Nr*Nr2))
+}
+
+
+# Main

Labb6/test_args.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Labb 6, testing some arguments
+
+# Echo all arguments
+echo $*
+
+# Echo the total number of arguments
+echo $#
+
+exit 0

Labb6/test_array.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Just testing arrays
+
+Content=`ls`
+
+Nr=0
+
+for i in $Content; do
+	Word[$Nr]=$i
+	((Nr++))
+done
+
+echo ${Word[@]}
+
+exit 0
+

Labb6/test_func.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Testing functions
+
+Nr1=$1
+Nr2=$2
+
+# Sanity checks
+if [ $# -ne 2 ]; then
+	echo "`basename $0` requires two arguments (integers)"
+	exit 2
+fi
+
+# Functions
+add()
+{
+	Sum=$((Nr1+Nr2))
+	return $Sum
+}
+
+# Main
+add
+echo $?
+echo "Nr1 contained ${#Nr1} chars, Nr2 contained ${#Nr2}"
+
+
+exit 0