My OS is Linux GL version 2.4.26. I am trying to make a shell script that outputs a chart displaying info of who is online, boot time, and the real time, I have manage to get it to work, but I still get the error "./user/script: line 1: : command not found." I do in fact have access to root, if that makes any difference. Although i do expect this to be either something i did wrong but just don't understand, or a bug in the Linux system.
#!/bin/bash
# it looks ugly without a clear... sooooo
clear
# This section is the time determining section
# the time command
tme=$(date);
# This is the system boot time determining section
# command for looking at boot time
boot=$(who -b);
# This section is the Users online determining section
# setting w and its arguments
wr=$(w -h root);
wg=$(w -h glucero565);
wa=$(w -h alucero565);
# determining weither or not root is logged in
if [ "$wr" != "" ]
then
line1=$(w -h root);
else
line1=$("");
fi
# determining weither or not glucero565 is logged in
if [ "$wg" != "" ]
then
line2=$(w -h glucero565);
else
line2=$("");
fi
# determining weither or not alucero565 is loggin in
if [ "$wa" != "" ]
then
line3=$(w -h alucero565);
else
line3=$("");
fi
# inserting parts of the chart
echo " Info "
echo "+---------------------------------------------------------------------------------+"
echo "| |"
# inserting current time here
echo "| $tme |"
# inserting boot time here
echo "| $boot |"
# determining what to put in the first line of the User section of the chart
if [ "$line1" == "" ]
then
echo "| |"
else
echo "| $line1 |"
fi
# determining what to put in the second line of the chart
if [ "$line2" == "" ]
then
echo "| |"
else
echo "| $line2 |"
fi
# determining what to put in the third line of the chart
if [ "$line3" == "" ]
then
echo "| |"
else
echo "| $line3 |"
fi
# inserting parts of the chart
echo "| |"
echo "+---------------------------------------------------------------------------------+"