Sponsored Content
Top Forums UNIX for Dummies Questions & Answers How to cut a big file into small ones? Post 302757273 by locohd on Thursday 17th of January 2013 10:00:17 AM
Old 01-17-2013
How to cut a big file into small ones?

Hello all,
Currently I have a txt file named as a.txt with the content as:
Code:
f e100
aa bb
cc dd
ee ff
f e222
aa dd
ff gg
f e987
dd aa
f e2222
gg ff
gg aa
dd ff
ee ee

While, for some reason I want to cut a.txt into small ones, e.g. f1.txt, f2.txt, f3.txt and f4.txt. The routine is to cut a.txt at lines starting with "f e*". Then the four small files will look like, e.g. f1.txt as:
Code:
aa bb 
cc dd
ee ff

f2.txt as:
Code:
aa dd
ff gg

f3.txt as:
Code:
dd aa

f4.txt as:
Code:
gg ff
gg aa
dd ff
ee ee

Any help would be appreciated. Thx in advance.
L

Moderator's Comments:
Mod Comment Please use code tags next time for your code and data.
 

5 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to view a big file(143M big)

1 . Thanks everyone who read the post first. 2 . I have a log file which size is 143M , I can not use vi open it .I can not use xedit open it too. How to view it ? If I want to view 200-300 ,how can I implement it 3 . Thanks (3 Replies)
Discussion started by: chenhao_no1
3 Replies

2. Shell Programming and Scripting

bash script working for small size files but not for big size files.

Hi, I have one file stat. Stat file contents are as follows: for example. H50768020040913,00260100,507680,13,0000000643,0000000643,00000,0000 H50769520040808,00260100,507695,13,0000000000,0000000000,00000,0000 H50770620040611,00260100,507706,13,0000000000,0000000000,00000,0000 Now i... (1 Reply)
Discussion started by: davidpreml
1 Replies

3. Shell Programming and Scripting

Cut big text file into 2

I have a big text file. I want to cut it into 2 pieces at known point or I know the pattern of the contents from where it can separate the files. Is there any quick command/solution? (4 Replies)
Discussion started by: sandy221
4 Replies

4. Shell Programming and Scripting

How to cut some data from big file

How to cut data from big file my file around 30 gb I tried "head -50022172 filename > newfile.txt ,and tail -5454283 newfile.txt. It's slowy. afer that I tried sed -n '46467831,50022172p' filename > newfile.txt ,also slow Please recommend me , faster command to cut some data from... (4 Replies)
Discussion started by: almanto
4 Replies

5. UNIX for Dummies Questions & Answers

How big is too big a config.log file?

I have a 5000 line config.log file with several "maybe" errors. Any reccomendations on finding solvable problems? (2 Replies)
Discussion started by: NeedLotsofHelp
2 Replies
RDUP-UP(1)							       rdup								RDUP-UP(1)

NAME
rdup-up - update a directory tree with a rdup archive SYNOPSIS
rdup-up [OPTION]... DIRECTORY DESCRIPTION
With rdup-up you can update an (possibly) existing directory structure with a rdup archive. The rdup archive has to be given to rdup-up's standard input. Username and uids rdup outputs both the username and uid, the receiving system (which may be a totally different system) checks if the username and uid match. If the username and uid don't match the (numeric) uid is used on the file. The same holds true for the groupname and gid. OPTIONS
-n Do a dry-run and do not create anything on disk. -t Create DIRECTORY (ala mkdir -p) if it does not exist. -s N Strip N path components from a pathname. If the resulting pathname is empty after this operation it is skipped. Be careful however with the following structure: /foo /foo/bar /foo/bar/bla.txt /foo/blork/bla.txt With rdup-up -s2 this will leave: <empty> <empty> /bla.txt /bla.txt And the last 'bla.txt' will overwrite the previous one, this will happen without warnings. -r PATH This option is related to the -s option, but works different. The string PATH is removed from (the beginning of) each pathname. With -r /home/backup the pathname /home/backup/bin/mycmd becomes /bin/mycmd. The same could be done with -s 2, but then you need to count the slashes. Note -s is always performed before -r. -v Be more verbose and echo the processed files to standard output. -vv Be even more verbose and echo processed file and the uid and gid information to standard output. -T Show a table of contents of the rdup stream received (ala tar -tf -). With -T the directory argument is optional. -T unsets any verbose (-v) options. -h A short help message. -V Show the version. EXIT CODE
rdup-up return a zero exit code on success, otherwise 1 is returned. AUTHOR
Written by Miek Gieben. REPORTING BUGS
Report bugs to <miek@miek.nl>. SEE ALSO
http:/www.miek.nl/projects/rdup/ is the main site of rdup. Also see rdup(1), rdup-tr(1) and rdup-backups(7). COPYRIGHT
Copyright (C) 2005-2010 Miek Gieben. This is free software. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Licensed under the GPL version 3. See the file LICENSE in the source distribution of rdup. 1.1.11 13 Dec 2008 RDUP-UP(1)
All times are GMT -4. The time now is 08:39 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy