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`end of file' unexpected error

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# 1  
Old 09-16-2010
`end of file' unexpected error
When I am executing my really simple shell script below, I got an error:
`end of file' unexpected. Script is suppose to print out a list of supplied parameters.
Here is my script:

Code:
#!/bin/sh

a=$#    #number or parameters
b=0      #starting counter

while [ $a > $b ]
do
   b=`expr $b + 1`
   echo $b
   echo "Parameter is $[$b]"
done

Last edited by Scott; 09-16-2010 at 02:01 PM.. Reason: Please use code tags
# 2  
Old 09-16-2010
Hi.

I don't get the same error as you.

> is used for redirection.

Try changing the while [$a > $b ] line to while [ $a -gt $b ]

Code:
$ ./MyTtest a b c
1
Parameter is $[1]
2
Parameter is $[2]
3
Parameter is $[3]

With your code:
Code:
$ ./MyTest a b c
1
Parameter is $[1]
./MyTest: line 6: 1: Is a directory

I would also change b=`expr $b + 1` to b=$((b + 1)) - I'm not much fond of the expr command!
# 3  
Old 09-16-2010
The script as posted prints the message in an infinite loop incrementing $b.

If you just want to print the supplied parameters:

Code:
#!/bin/sh
echo "$*"

# 4  
Old 09-16-2010
I finally opened file in vi and noticed that it has a banch of characters:

^M

What is a quick way to clean it?
Last edited by alexstar; 09-16-2010 at 02:41 PM.. Reason: misspell
# 5  
Old 09-16-2010
This is because you edited/created in a Windows environment and every row has a Line Feed and a CR.

The command to remove this is:
Code:
dos2unix <FileName>

Just one more comment, if you want the opposite, you have:
Code:
unix2dos <FileName>

Last edited by felipe.vinturin; 09-17-2010 at 07:41 AM..
This User Gave Thanks to felipe.vinturin For This Post:
alexstar
# 6  
Old 09-16-2010
try:
Code:
#!/bin/sh

#a=$#    #number or parameters
b=0      #starting counter

while [ $# -gt $b ]
do
   b=`expr $b + 1`
   echo $b
   echo "Parameter is $[$b]"
done

Last edited by john1212; 09-16-2010 at 08:02 PM.. Reason: thank you frank_rizzo
This User Gave Thanks to john1212 For This Post:
alexstar
# 7  
Old 09-16-2010
john1212 -
Code:
while [ $# > $b ]

is incorrect. as scottn already stated > is a redirection operator. use -gt.
This User Gave Thanks to frank_rizzo For This Post:
alexstar
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