Counting lines in a file

[ianicr]

I have a file with 500 different postcodes in it. I need to find out how many of each there are. Is there an easy way to do this?

 

[vgersh99]

man uniq

uniq -c postCodes.txt

vlad
+----------------------------+
| #include<disclaimer.h> |
+----------------------------+

 

[Ygor]

sort -u file | wc -l

 

[ianicr]

Sorry if i was unclear. An example of the file is
DE1 3FK
DE1 4GK
DE1 4LS
DE5 FKG
DE5 3FJ
DE23 4GK

I need to find out how many DE1, how many de5 and how many de23.

Thanks

 

[Ygor]

awk '{a[$1]++} END {for(x in a) print a[x],x}' fileA

 

[bigoldbulldog]

awk '{print $1}' postCodes.txt | sort | uniq -c

Don't forget to sort before using uniq - if already in order, then you don't have to.


Cheers,
ND

bigoldbulldog@hotmail.com