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Issue deleting blank line from a file

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# 1  
Old 03-28-2014
[Solved] Issue deleting blank line from a file
I'm trying to delete the blank lines from the file $Sfile. tried the below set of commands. Both are giving the same error (: bad interpreter: No such file or directory)

Code:
awk 'NF > 0' $Sfile > $Tfile
cat $Tfile

Code:
sed -i '/^$/d' $Sfile
cat $Sfile

Not sure if there's any other problem with the program. But without the above scripts, the program is working fine. But I need this logic to be put, in order to remove the blank lines, as it is causing some issues.

Please help me.
# 2  
Old 03-28-2014
Code:
echo $Sfile | sed -i.BKUP '/^$/d'

This User Gave Thanks to in2nix4life For This Post:
Pandee
# 3  
Old 03-28-2014
How do I write the output of this to a file?

---------- Post updated at 06:27 PM ---------- Previous update was at 06:22 PM ----------

With the below script also, I'm getting the same error

Code:
echo $Sfile | sed -i.BKUP '/^$/d'

Code:
: bad interpreter: No such file or directory

---------- Post updated at 06:31 PM ---------- Previous update was at 06:27 PM ----------

Below is the complete set of code :

Code:
#!/bin/sh
#
Sfile=/u01/scripts/Sfile.log
Pfile=/u01/scripts/Pfile.log
Tfile=/u01/scripts/Tfile.log

cat /dev/null > $Sfile
grep -v '-' $Pfile > $Tfile
grep -v 'PRCSINSTANCE' $Tfile > $Sfile
echo $Sfile | sed -i.BKUP '/^$/d'

# 4  
Old 03-28-2014
Code:
Sfile=/path/filename
sed -i.BKUP '/^$/d' $Sfile

-i option is in place replacement, sed will take backup of your original file as "filename.BKUP"
This User Gave Thanks to pravin27 For This Post:
Pandee
# 5  
Old 03-28-2014
Thanks Pravin. It is still giving the error :

Code:
: bad interpreter: No such file or directory

Please let me know if I'm missing anything in the code.
# 6  
Old 03-28-2014
Please explain the complete logic of what you want the script to do as in the initial posting you just mentioned removing blank lines from the filename contained in a variable.
# 7  
Old 03-28-2014
Usually that would mean your hashbang is wrong. I would think /bin/sh is correct though...
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