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Top Forums Shell Programming and Scripting Unknown Problem. I really want your help to solve this!
# 1  
Old 05-11-2010
PHP Unknown Problem. I really want your help to solve this!
Take a look on this code:
Code:
#!/bin/sh
currentpath=`pwd`
if [ `id -u` != 0 ]; then
#Normal user
if [ -s "$currentpath"/$USER ]; then
"$currentpath"/.cleaner
else
./runit
fi
else
#Root user
if [ -s /some ]; then
rm -r /some
fi
mkdir /some
cd /home/
echo "`ls --group-directories-first -1`" > /some/allusers
cat /some/allusers | sed 's/ /\\ /g' > /some/allrealusers
user1=`cat /some/allrealusers | awk 'NR>0 && NR<2{print $0}'`
user2=`cat /some/allrealusers | awk 'NR>1 && NR<3{print $0}'`
user3=`cat /some/allrealusers | awk 'NR>2 && NR<4{print $0}'`
user4=`cat /some/allrealusers | awk 'NR>3 && NR<5{print $0}'`
user5=`cat /some/allrealusers | awk 'NR>4 && NR<6{print $0}'`
user6=`cat /some/allrealusers | awk 'NR>5 && NR<7{print $0}'`
user7=`cat /some/allrealusers | awk 'NR>6 && NR<8{print $0}'`
user8=`cat /some/allrealusers | awk 'NR>7 && NR<9{print $0}'`
user9=`cat /some/allrealusers | awk 'NR>8 && NR<10{print $0}'`
rm -r /some
if [ -s "$currentpath"/$user1 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user2 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user3 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user4 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user5 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user6 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user7 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user8 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user9 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s /some ]; then
rm -r /some
fi
clear
"$currentpath"/.runit
fi

Image Problem in Unix Script (maybe if-else.....)
Take a look on this code:
Code:
#!/bin/sh
currentpath=`pwd`
if [ `id -u` != 0 ]; then
#Normal user
if [ -s "$currentpath"/$USER ]; then
"$currentpath"/.cleaner
else
./runit
fi
else
#Root user
if [ -s /some ]; then
rm -r /some
fi
mkdir /some
cd /home/
echo "`ls --group-directories-first -1`" > /some/allusers
cat /some/allusers | sed 's/ /\\ /g' > /some/allrealusers
user1=`cat /some/allrealusers | awk 'NR>0 && NR<2{print $0}'`
user2=`cat /some/allrealusers | awk 'NR>1 && NR<3{print $0}'`
user3=`cat /some/allrealusers | awk 'NR>2 && NR<4{print $0}'`
user4=`cat /some/allrealusers | awk 'NR>3 && NR<5{print $0}'`
user5=`cat /some/allrealusers | awk 'NR>4 && NR<6{print $0}'`
user6=`cat /some/allrealusers | awk 'NR>5 && NR<7{print $0}'`
user7=`cat /some/allrealusers | awk 'NR>6 && NR<8{print $0}'`
user8=`cat /some/allrealusers | awk 'NR>7 && NR<9{print $0}'`
user9=`cat /some/allrealusers | awk 'NR>8 && NR<10{print $0}'`
rm -r /some
if [ -s "$currentpath"/$user1 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user2 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user3 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user4 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user5 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user6 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user7 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user8 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s "$currentpath"/$user9 ]; then
"$currentpath"/.cleaner
exit
fi
if [ -s /some ]; then
rm -r /some
fi
clear
"$currentpath"/.runit
fi

Well, the program first checks if the user who run it is root or not. The problem is when the program is ran by root. Then, a file is created which contains the names of each user, and creates some variables user1, user2 etc with the usernames. Well, if the program is run by root, even if in the current path there isn't any folder or file with the name of any user, it runs the ./cleaner and not the ./runit as it should be. I cannot understand my fault and I am trying to solve this problem some hours now...
Last edited by Scott; 05-11-2010 at 01:45 PM.. Reason: More code tags
# 2  
Old 05-11-2010
That's a very odd way to code the program, running awk 9 times to process one flat file... You've also got many useless uses of cat in there. That's going to be extremely slow.

You can probably do that in a loop, without cat or awk, and perhaps fix the problem at the same time, what does realusers look like?
# 3  
Old 05-11-2010
$USER is not set anywhere.
# 4  
Old 05-11-2010
And regarding your problem, I think the easiest way is to put echo above the if condition.


Code:
echo "$currentpath"/$USER

if [ -s "$currentpath"/$USER ]; then

 echo "inside if"
 #"$currentpath"/.cleaner
else
 echo "inside if"
 #./runit
fi

# 5  
Old 05-11-2010
Also, just because a directory's empty doesn't mean it has a size of zero. So the -s flag probably isn't doing what you think.

In short, your program's got deeper problems than a minor glitch. Can you tell us exactly what it's supposed to do?
Last edited by Corona688; 05-11-2010 at 02:00 PM..
# 6  
Old 05-11-2010
Quote:
Originally Posted by methyl
$USER is not set anywhere.

$USER is a system variable or something?
Correct me if wrong.
# 7  
Old 05-11-2010
Quote:
Originally Posted by anchal_khare
$USER is a system variable or something?
Correct me if wrong.
It is here, at least.
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