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Top Forums Shell Programming and Scripting "group by" using shell script? Post 302421948 by tiger2000 on Monday 17th of May 2010 06:34:04 AM
Old 05-17-2010
"group by" using shell script?

not sure if it's called "group by" , but what i'm going to do is like this:

i have a file below:

Code:
192.168.1.10
192.168.1.10
192.168.1.10
192.168.1.11
192.168.1.15
192.168.1.15
192.168.1.20
192.168.1.22

then i hope to get the result like this:

Code:
192.168.1.10 : 3
192.168.1.11 : 1
192.168.1.15 : 2
192.168.1.20 : 1
192.168.1.22 : 1

the number in second column is how many times it appears in the file.

1. use sort , and uniq to get how many unique record in this file
2. use grep with wc -l command to get how many times it appears

is there any better to do so ?? any advice?

Thanks.

Last edited by radoulov; 05-17-2010 at 08:12 AM.. Reason: Please use code tags!
 

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PRIPS(1)						    BSD General Commands Manual 						  PRIPS(1)

NAME
prips -- print the IP addresses in a given range SYNOPSIS
prips [-c] [-d delim] [-e exclude] [-f format] [-i incr] start end prips [-c] [-d delim] [-e exclude] [-f format] [-i incr] CIDR-block prips -h DESCRIPTION
The prips tool can be used to print all of the IP addresses in a given range. It can enhance tools that only work on one host at a time, e.g. whois(1). The prips tool accepts the following command-line options: -c Print the range in CIDR notation. -d delim Set the delimiter to the character with ASCII code delim where 0 <= delim <= 255. -e <x.x.x,x.x> Exclude ranges from the output. -f format Set the format of addresses (hex, dec, or dot). -h Show summary of options. -i incr Set the increment to 'x'. ENVIRONMENT
The prips tool's operation is not influenced by any environment variables. FILES
The prips tool's operation is not influenced by any files. EXAMPLES
Display all the addresses in a reserved subnet: prips 192.168.32.0 192.168.32.255 The same, using CIDR notation: prips 192.168.32/24 Display only the usable addresses in a class A reserved subnet using a space instead of a newline for a delimiter: prips -d 32 10.0.0.1 10.255.255.255 Display every fourth address in a weird block: prips -i 4 192.168.32.7 192.168.33.5 Determine the smallest CIDR block containing two addresses: prips -c 192.168.32.5 192.168.32.11 DIAGNOSTICS
The prips utility exits 0 on success, and >0 if an error occurs. SEE ALSO
ipsc(1), gipsc(1) STANDARDS
No standards were harmed in the writing of the prips tool. HISTORY
The prips tool was originally written by Daniel Kelly and later adopted by Peter Pentchev. This manual page was originally written by Juan Alvarez for the Debian GNU/Linux system and later added to the prips distribution and converted to mdoc format by Peter Pentchev. AUTHORS
Daniel Kelly <dan@vertekcorp.com> Juan Alvarez <jalvarez@fluidsignal.com> Peter Pentchev <roam@ringlet.net> BUGS
Please report any bugs in the prips tool to its current maintainer, Peter Pentchev. BSD
March 1, 2011 BSD
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