Exercise 6 and 7 done

2013-12-29 14:58:07 +01:00
parent 43d30c5336
commit 2c3830d50d
3 changed files with 92 additions and 0 deletions
--- a/Labb8/ovning7.sh
+++ b/Labb8/ovning7.sh
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+#!/bin/bash
+
+# Jack-Benny Persson
+# LX13
+# Exercise 7 lab 8 (Write a script to show logged in users in a HTML table
+
+# Binaries
+Awk="/usr/bin/awk"
+Sed="/bin/sed"
+Printf="/usr/bin/printf"
+Who="/usr/bin/who"
+
+# Variables
+Outfile="/home/jake/loggedin.html"
+
+# Sanity check
+if [ ! -w `dirname $Outfile` ]; then
+	echo "Can't write to `dirname $Outfile`"
+	exit 1
+fi
+
+for Bin in $Awk $Sed $Printf $Who; do
+	if [ ! -x $Bin ]; then
+		echo "Can't execute $Bin"
+		exit 1
+	fi
+done
+
+
+### Main ###
+exec 1> $Outfile
+
+# Print the HTML header for us
+$Printf "<html><head><title>Logged in users</title></head>\n"
+$Printf "<body>\n"
+$Printf "<table border=1>\n"
+$Printf "<tr>\n"
+$Printf "<td><b>User</b></td><td><b>TTY</b></td><td><b>Date</b>"
+$Printf "</td><td><b>Time<b></td>\n"
+$Printf "</tr>\n"
+
+# Print all the current logins for us in a nice table
+$Who | \
+awk 'BEGIN { OFS="</td><td>"; ORS="\n</tr><tr>\n" } { print $1, $2, $3, $4 }' |\
+sed '/^[a-z]/s/^/<td>/' | sed '/[0-9]$/s/$/<\/td>/' | sed '$d'
+
+# End the table and HTML
+$Printf "</tr>\n"
+$Printf "</table>\n"
+$Printf "</body>\n"
+$Printf "</html>\n"
+
+exit 0