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Count files lines in a directory?

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# 1  
Old 03-10-2006
Count files lines in a directory?
Hy!

I have some problem. Problem is that i don't now how to solve problem of average lines of files in a directory.

I have managed to get number of files in a directory, but i don't know the command to count average lines of these files.

I have one "for" loop that goes true whole directory...

Thanks in advance!
# 2  
Old 03-10-2006
look into 'man wc'
# 3  
Old 03-10-2006
Use wc command to get the number of lines (if I remember correctly, wc adds one or subtracts one from the actual count). Add the total number, divided by number of files for the average number of lines.
# 4  
Old 03-10-2006
Yes but i don't know how to use wc command in a for loop on all files. I tried butt i have not managed to make it.

Example: I have 5 files in a directory. And i want to count their average lines.

@RTM - your idea is good but i'm newbie in linux. I will be very gratefoul if you guys can explain a little bit more. Smilie
# 5  
Old 03-11-2006
to count all '.txt' files:
Code:
#!/bin/ksh

typeset -i sum=0
typeset -i cnt=0

for i in *.txt
do
   sum=$(( sum + $(wc -l < "${i}") ))
   cnt=$(( cnt + 1 ))
done

printf "sum->[%d] cnt->[%d] avgSZ->[%.2f]\n" ${sum} ${cnt} "$(echo "scale=2; $sum / $cnt" | bc)"

# 6  
Old 03-12-2006
Code:
ruby -e 'c=ARGV.size;p ARGF.to_a.size/c.to_f' *

This won't work if the total number of lines is too large, since all of the lines will be put into an array.
# 7  
Old 03-12-2006
Yes but i need that code in linux shell script. I'm only beginning shell scripting i don't now much about it...Thanx
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