Script to count number of rows


 
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# 1  
Script to count number of rows

Hi,

I need a solaris shell script to read multiple files and count number of unique name rows(strings) from those files. The input and output should be like this
Input:
file 1
Code:
abc                          
cde                          
abc                          
abc

file 2
Code:
xyz
kds
abc
cde

file 3
Code:
xyz
abc
cde
abc


Output:
In the input total no of strings are 12 but abc is repeated 6 times,cde is repeated 3 times and xyz is repeated 2 times and kds once. As per my requirement though the total count is 12 it should show count as 4(i.e unique strings) only

i.e , output is Count = 4

Can any help me please............

Thanks in advance>>

Last edited by Scrutinizer; 12-14-2013 at 05:18 AM.. Reason: code tags
# 2  
Try:
Code:
/usr/xpg4/bin/awk '!A[$1]++{c++} END{print c}' file*





--
Or:
Code:
cat file* | sort -u | wc -l

But that would be sensitive to excess spacing, which might be a problem if the files have been edited manually.
So then you might need something like this:
Code:
awk '{print $1}' file* | sort -u | wc -l


Last edited by Scrutinizer; 12-14-2013 at 05:32 AM..
# 3  
This should also work with /usr/bin/awk=oawk
Code:
awk '0==A[$1]++ {c++} END {print c}' file*

# 4  
Hi everyone,

Thanks for your help.
Based on your answers I got my solution with this script....

Code:
cat file*| awk '{print $1}'| sort -u |uniq |wc -l


Once again thanks for your valuable time...

Last edited by Scrutinizer; 12-23-2013 at 03:52 AM.. Reason: code tags
# 5  
You are welcome. The solution could be shortened still by leaving out uniq (which is superfluous after sort -u) and cat (which is not necessary because awk can read multiple files). Like so:
Code:
awk '{print $1}' file* | sort -u | wc -l


--
In Solaris you may need nawk, but I think regular awk can do this too

Last edited by Scrutinizer; 12-23-2013 at 04:02 AM..
# 6  
Hi Scrutinizer,

I just checked your inputs,,, you are correct and both are giving the same output.

Thanks for the optimization.
# 7  
Hi All,

I have two questions:

1) I need to list the folders in descending order of their memory and that to be in MB
ex: 100M file1.txt
50M file2.txt
10K file3.txt

etc.,

2) I have the list like this in a file with two columns as below:

ex: 100M file1.txt
50M file2.txt
10K file3.txt
...........
1M filex.txt
............

I need to display the lines only that contain M as last letter in the first column of every row.

My output should be like this : 100M file1.txt
50M file2.txt
1M filex.txt
...........
...........


Thanks in Advance
 

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