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awk redirection

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# 1  
Old 10-07-2010
awk redirection
Hi everyone

i am facing a very strange problem . see below is my code

#awk <do something> file 1 > file2


Now the problem is whenever i am redirecting the output to file2 it creates the file2 but of 0 size. i don't know what is the reason but it is very important to me to redirect the output .

please help me regarding this
# 2  
Old 10-07-2010
did you try like this?
Code:
# awk <do something> file > file2

# 3  
Old 10-07-2010
hi ygemici


yes i tried like this but still the file creating is of 0 bytes

---------- Post updated at 12:40 PM ---------- Previous update was at 12:37 PM ----------

and i am using sun solaris system and i don't knw why it is not running in my machine at office and i tried it at home also in linux machine and it is working fine so what could be the problem

---------- Post updated at 12:55 PM ---------- Previous update was at 12:40 PM ----------

please reply
# 4  
Old 10-07-2010
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# 5  
Old 10-07-2010
can you write awk command?
# 6  
Old 10-07-2010
hi moderator
sry that will not happen again

hi the command is
Code:
#touch FSS-G-ABC-2010_22_22_2222_9.log

#cat >> FSS-G-ABC-2010_22_22_2222.log
abc def ghi 
jhg
^C
# for file in `ls *.log`
#>do
#>a=100
#>b=`echo $file  | cut -d_ -f4 | cut -d. -f1
#>c=`echo $file | sed "s/$b/$a/"
#>awk ' { if(NR==1) { $1="zzz" } ' $file > $c
#> rm $file
#> done

#> cat FSS-G-ABC-2010_22_22_100.log
#>


so here is my above code file which is created has nothing
Last edited by Franklin52; 10-08-2010 at 03:29 AM.. Reason: Please use code tags, thank you
# 7  
Old 10-07-2010
try like this but if awk statement does not match then your output file is empty
for exam if the nr 1 first val is not "zzz" in the *.log
and must not be forget close backquotes
and in your awk code second curly brackets is unnecessary

Code:
for file in `ls *.log`
do
a=100
b=`echo $file | cut -d_ -f4 | cut -d. -f1`
c=`echo $file | sed "s/$b/$a/"`
awk ' { if(NR==1)  $1="zzz" } ' $file > $c
rm $file
done



---------- Post updated at 10:20 PM ---------- Previous update was at 10:14 PM ----------

and if you tell clearly what you want to do then i can help you more than Smilie
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