# Lunix split with ruby **URL:** \ **Category:** Ruby\ **Created:** [October 7, 2009, 12:18pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874 "2009-10-07T12:18:14Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 12:18pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/1 "2009-10-07T12:18:14Z")
I am using cygwin on windows. I write this script. I have to split all files in the directory. Dir.foreach(‘C:/tmp/test’) {|file| f = system( “split -l 60000 #{file}”) puts “file name : #{f}” } My files is file1.txt 10mb file2.txt 14mb file3.txt 8mb file4.txt 5mb I want to split the files file1-1.txt file1-2.txt file1-3.txt … file4-1.txt file4-2.txt how can i do it ? please help me. ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 5:25pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/2 "2009-10-07T17:25:30Z")
unknown wrote: > On Wed, Oct 7, 2009 at 6:19 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > wrote: > > > file1-1.txt > > file1-2.txt > > file1-3.txt > > … > > > > how can i do it ? > > > > please help me. > > What (incorrect) output does your current script produce? the output is only xaa xab xac xad … I want to loop all files and split for each around 1mb. ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 5:19pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/3 "2009-10-07T17:19:35Z")
On Wed, Oct 7, 2009 at 6:19 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > file1-1.txt > file1-2.txt > file1-3.txt > … > > how can i do it ? > > please help me. What (incorrect) output does your current script produce? ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 5:56pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/4 "2009-10-07T17:56:59Z")
unknown wrote: > On Wed, Oct 7, 2009 at 11:25 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > wrote: > > > > > please help me. > > > > I want to loop all files and split for each around 1mb. > > > > Okay, that helps; looks like by default split names the files > > > > “xaa”…“xzz”: > > [http://unixhelp.ed.ac.uk/CGI/man-cgi?split](http://unixhelp.ed.ac.uk/CGI/man-cgi?split) > > As as first pass (still won’t be quite what you asked for) try changing: > > “split -l 60000 #{file}” > > to: > > “split -l 60000 #{file} #{file}-” > > that should change the output file names from “x” + “#{counter}” to > “#{file}” + “-” + “#{counter}” thank you for quick reply. I cold not understand counter. Where is it coming? like this counter = 0 and counter file + 1 ??? ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 5:40pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/5 "2009-10-07T17:40:41Z")
On Wed, Oct 7, 2009 at 11:25 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > > please help me. > > > I want to loop all files and split for each around 1mb. > > > Okay, that helps; looks like by default split names the files > > > “xaa”…“xzz”: [http://unixhelp.ed.ac.uk/CGI/man-cgi?split](http://unixhelp.ed.ac.uk/CGI/man-cgi?split) As as first pass (still won’t be quite what you asked for) try changing: “split -l 60000 #{file}” to: “split -l 60000 #{file} #{file}-” that should change the output file names from “x” + “#{counter}” to “#{file}” + “-” + “#{counter}” ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 8, 2009, 3:30am UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/6 "2009-10-08T03:30:03Z")
unknown wrote: > On Wed, Oct 7, 2009 at 11:57 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) > wrote: > > > thank you for quick reply. I cold not understand �counter. Where is it > > coming? > > like this counter = 0 > > and �counter file + 1 ??? > > Sorry, yes that was unclear; it was just representing the “aa”…“az” > that split tacks on to the end of the file name. So, I’m thinking > that will produce output files named like: > > ``` > file1.txt-aa > file1.txt-ab > file1.txt-ac > file2.txt-aa > file3.txt-ab > ... > > ``` sorry for late reply. I was thinking like that but it was not work for me. thank you for help. ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 7, 2009, 6:10pm UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/7 "2009-10-07T18:10:33Z")
On Wed, Oct 7, 2009 at 11:57 AM, Ahmet K. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > thank you for quick reply. I cold not understand counter. Where is it > coming? > like this counter = 0 > and counter file + 1 ??? Sorry, yes that was unclear; it was just representing the “aa”…“az” that split tacks on to the end of the file name. So, I’m thinking that will produce output files named like: ``` file1.txt-aa file1.txt-ab file1.txt-ac file2.txt-aa file3.txt-ab ... ``` ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 8, 2009, 7:06am UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/8 "2009-10-08T07:06:50Z")
thank you very much. ---
**Author:** ![ahmet](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/ac91a4/32.png) [@ahmet](https://www.ruby-forum.com/u/ahmet)\ **Post date:** [October 8, 2009, 4:27am UTC](https://www.ruby-forum.com/t/lunix-split-with-ruby/176874/9 "2009-10-08T04:27:39Z")
Ahmet K. wrote: > > ``` > > file1.txt-aa > > file1.txt-ab > > file1.txt-ac > > file2.txt-aa > > file3.txt-ab > > ... > > > > ``` > > sorry for late reply. > I was thinking like that but it was not work for me. > thank you for help. use split -d -l 60000 ${file} ${file}- which should give you files of the format $file-01 $file-02 $file-0… if the split file is going to generate more than 99 files, add -a 4 to the parameters… i.e. split -d -l 60000 MyFile.txt MyFile.txt- gives MyFile.txt-01 MyFile.txt-02 MyFile.txt-03 MyFile.txt-… Then write a script that renames the files ala for file in `ls MyFile.txt-*` do prefix=${file%%.txt\*} # echo $prefix ``` suffix=${file##file.txt} ``` # echo $suffix ``` echo ${prefix}${suffix}.txt mv $file ${prefix}${suffix}.txt ``` done