Been testing some stuff and started lab 8

Labb8/testing_sedawk/README.md

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+# Sed & Awk tests #
+Most of these examples are from lab 8 and the book (chapter 18, Linux Command Line and
+Shell Scripting Bible, 2nd edition).
+

Labb8/testing_sedawk/file.txt

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+Den första raden
+Den andra raden
+Många rader kan det bli
+Långa rader också
+Kanske en rad till
+Varför inte ta ett par rader till
+I matematiken kan vi räkna ut radius
+Eller var det någon annan rad?
+Det här är iaf den sista raden i en
+text om rader.

Labb8/testing_sedawk/notes.md

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+# Misc notes on sed & awk #
+
+sed -n '/^[MmLl]ånga/p' file.txt
+sed 's/^/Spock -- /g' file.txt

Misc/accountinfo.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Testing out the IFS (Field Separator) variable
+# and some sed along the way.
+# Turned out to become a small script to display your account information
+
+# Binaries
+Sed="/bin/sed"
+
+# Sanity check
+if [ ! -x $Sed ]; then
+	echo "Can't execute $Sed"
+	exit 1
+fi
+
+# Set the field seprator to match that of the passwd file
+IFS=$":"
+
+# Read the users info from the passwd file
+Row=`sed -n "/$USER/p" /etc/passwd`
+
+# Define an array with explanitory info
+Info=("Username:" "Password:" "UID:" "GID:" "Comment:" "Home:" "Shell:")
+
+echo "Your account information"
+echo "------------------------"
+# Itterate the fields and print the info
+Index=0
+for i in $Row; do
+	echo "${Info[$Index]} $i"
+	((Index++))
+done
+
+exit 0
+

Misc/allaccounts.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Testing out the IFS (Field Separator) variable
+# and some sed along the way.
+# Turned out to become a small script to display your account information
+
+# Binaries
+Sed="/bin/sed"
+
+# Sanity check
+if [ ! -x $Sed ]; then
+	echo "Can't execute $Sed"
+	exit 1
+fi
+
+for entry in `cat /etc/passwd`; do
+	echo "Information on user `echo $entry | awk '{ print $1 }'`"
+	echo "---------------------------"
+
+	IFS=$":"
+	Info=("Username:" "Password:" "UID:" "GID:" "Comment:" "Home:" "Shell:")
+
+	# Itterate the fields and print the info
+	Index=0
+	for i in $entry; do
+		echo "${Info[$Index]} $i"
+		((Index++))
+	done
+	echo ""
+done
+
+exit 0
+

Misc/itsatrap.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Testing out traps
+
+trap "echo ' I have just trapped CTRL+C'" SIGINT SIGTERM
+trap "echo ' Dont stop me plz'" SIGTSTP
+trap "echo ' Ok, just exit'" EXIT
+
+for (( i=60; i>=0; i-- )); do
+	echo $i
+	sleep 1
+done
+
+exit 0

Misc/nesting_loops.sh

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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Testing out nested loop from the book
+
+for (( a = 1; a <= 3; a++ )); do
+	echo "Outer loop: $a"
+	for (( b = 1; b <= 3; b++ )); do
+		echo "	Inner loop: $b"
+	done
+done
+
+exit 0