Why you don’t need HJSplit for Linux
HJSplit is famous in the DOS/Windows world as a way to split/join large files for easy network transfer. I’m just confused why they bothered to make an HJSplit version for linux. This HJSplit for Linux even requires you to install a separate library which add to the garbage for such a useless app (for nix). If you’re on linux and you encounter a file split via HJSplit, just use the venerable `cat` and you’d be fine.
cat split-files.rar.* > split-files.rar
Thanks for the tip!
Sam
September 21, 2007 at 8:00 pm
the best tip I’ve got
Ofer
October 4, 2007 at 10:07 pm
Didn’t know this – thanks for pointing it out
Arc
May 8, 2008 at 11:17 pm
Now I’m just wondering how to easily split the file in linux so something like HJsplit in windows can join it together again.
Messing about with the split command but the closest I’ve gotten is to have the files output starting at .000, instead of .001
Arc
May 9, 2008 at 5:37 pm
Arc:
$ i=1;for file in splitfiles*; do mv $file $(printf “newfiles.%03i” $i);i=$((i+1)) ; done
Didn’t bother re-using the old filename because it would just clobber the next file name if I do it like
file.000 –> file.001 # will write over the original file.001
so making a new filename is the best I can come up with in 5 minutes
jedrm
May 17, 2008 at 10:28 am
Cant get any easier. Cheers for this!
Brinley
August 17, 2008 at 3:52 pm
Nifty! I used it and it works fine. Thanks
Clair
September 11, 2008 at 2:16 pm
[...] to the blog post of Jed about why you don’t need HJSplit for Linux. I’ve never really had the need to split files nor join files until [...]
Cat for connecting files broken down via HJSplit
September 11, 2008 at 3:50 pm
@Clair: Glad to help
jedrm
September 13, 2008 at 1:04 am
Can’t belive that there is no cat equivalent in Windows… Cant this be done in DOS?
Rishabh
September 14, 2008 at 9:29 pm
You have the choice of installing cygwin.com. But why install cygwin when you can install hjsplit for windows.
This is just for linux users who don’t want to install hjsplit for linux on their machines.
You can try the “type” command in the command propt but I’m not sure if that will work.
We’d like to hear if you are successful.
jedrm
September 16, 2008 at 3:36 pm
One of the best tips I have come across. THANK YOU!
Chuck
October 19, 2008 at 12:20 am
Claps your hands and say yeahhh. Great tips.
Dimas
January 13, 2009 at 8:17 am
great tip. i rate this as one from a “guru”. thanks. but i can not figure out the script that would split the file. where are we specifying the number of parts we would like to split the file into ?
aman gopal sureka
January 14, 2009 at 2:02 pm
@aman: that’s easy. to split the file use bash’s split command.
split -da 3 bigfile.pdf splitfiles
(‘man split’ for more info on the useful split command)
the command:
i=1;for file in splitfiles*; do mv $file $(printf “newfiles.%03i” $i);i=$((i+1)) ; done
is just used to rename the files so the first splitfile has .001 has its extension instead of .000 which is the default for the split command.
Because HJSplit only detect files starting with .*1 as its first file (which is weird in computerland where everything should start with 0).
I guess you can make a better version using Perl/Python/Ruby/etc that will split files into HJSPlit named formats but I’m lazy so the above will work anytime, everytime without you breaking a sweat.
jedrm
January 15, 2009 at 3:31 pm
thanks a million. i honestly feel “enlightened”
this is a really neat feature that i can use. i was not aware of the split command and the script makes sense (to me) now.
aman gopal sureka
January 15, 2009 at 4:51 pm
I figured the files were just literally split and renamed, just shows how stupid people are that try to make you download this closed source HJSplit crap probably full of virii. Shh, don’t show them this page or they will insert headers and obfuscation in the split files!
dooh
July 5, 2009 at 5:17 am