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Exercise 6 and 7 done

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Jack-Benny Persson
2013-12-29 14:58:07 +01:00
parent 43d30c5336
commit 2c3830d50d
3 changed files with 92 additions and 0 deletions
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23
Labb8/loggedin.html Normal file
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<html><head><title>Logged in users</title></head>
<body>
<table border=1>
<tr>
<td><b>User</b></td><td><b>TTY</b></td><td><b>Date</b></td><td><b>Time<b></td>
</tr>
<td>jake</td><td>tty7</td><td>2013-12-06</td><td>14:10</td>
</tr><tr>
<td>jake</td><td>pts/0</td><td>2013-12-26</td><td>08:56</td>
</tr><tr>
<td>jake</td><td>pts/1</td><td>2013-12-06</td><td>14:56</td>
</tr><tr>
<td>jake</td><td>pts/2</td><td>2013-12-29</td><td>14:21</td>
</tr><tr>
<td>jake</td><td>pts/3</td><td>2013-12-26</td><td>08:56</td>
</tr><tr>
<td>jake</td><td>pts/5</td><td>2013-12-27</td><td>17:58</td>
</tr><tr>
<td>jake</td><td>pts/7</td><td>2013-12-28</td><td>11:05</td>
</tr>
</table>
</body>
</html>

16
Labb8/ovning6.sh Executable file
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#!/bin/bash
# Jack-Benny Persson
# LX13
# Exercise 6 - lab 8 (Write a script with awk that prints linenumbers)
# Sanity check
if [ $# -ne 1 ]; then
echo "$0 requiers one argument"
exit 1
fi
awk '{ print NR" " $0 }' "$1"
exit 0

53
Labb8/ovning7.sh Executable file
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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