Sponsored Content
Top Forums Shell Programming and Scripting Splitting a file based on line number Post 302840799 by phil_heath on Tuesday 6th of August 2013 01:37:38 PM
Old 08-06-2013
Splitting a file based on line number

Hi I have a file with over a million lines (rows) and I want to split everything from 500,000 to a million into another file (to make the file smaller). Is there a simple command for this?

Thank you

Phil
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Splitting file based on number of rows

Hi, I'm, new to shell scripting, I have a requirement where I have to split an incoming file into separate files each containing a maximum of 3 million rows. For e.g: if my incoming file say In.txt has 8 mn rows then I need to create 3 files, in which two will 3 mn rows and one will contain 2... (2 Replies)
Discussion started by: wahi80
2 Replies

2. Shell Programming and Scripting

Split File Based on Line Number Pattern

Hello all. Sorry, I know this question is similar to many others, but I just can seem to put together exactly what I need. My file is tab delimitted and contains approximately 1 million rows. I would like to send lines 1,4,& 7 to a file. Lines 2, 5, & 8 to a second file. Lines 3, 6, & 9 to... (11 Replies)
Discussion started by: shankster
11 Replies

3. Shell Programming and Scripting

move contents from one file to another based on line number or content

I want a script that will move everything beyond a certain line number or beyond a certain content word into another file. For example, if file A has this: first line second line third line forth line fifth line sixth line I want to run a script that will move everything beyond the third... (4 Replies)
Discussion started by: robp2175
4 Replies

4. Shell Programming and Scripting

join based on line number when one file is missing lines

I have a file that contains 87 lines, each with a set of coordinates (x & y). This file looks like: 1 200.3 -0.3 2 201.7 -0.32 ... 87 200.2 -0.314 I have another file which contains data that was taken at certain of these 87 positions. i.e.: 37 125 42 175 86 142 where the first... (1 Reply)
Discussion started by: jackiev
1 Replies

5. Shell Programming and Scripting

splitting a huge line of file into multiple lines with fixed number of columns

Hi, I have a huge file with a single line. But I want to break that line into lines of with each line having five columns. My file is like this: code: "hi","there","how","are","you?","It","was","great","working","with","you.","hope","to","work","you." I want it like this: code:... (1 Reply)
Discussion started by: rajsharma
1 Replies

6. Shell Programming and Scripting

Splitting file based on line numbers

Hello friends, Is there any way to split file from n to n+6 into 1 file and (n+7) to (n+16) into other file etc. f.e I have source pipe delimated file with 20 lines and i need to split 1-6 in file1 and 7-16 in file2 and 17-20 in file 3 I need to split into fixed number of file like 4 files... (2 Replies)
Discussion started by: Rizzu155
2 Replies

7. UNIX for Dummies Questions & Answers

Splitting the file basis of Line Number

Can u pls advise the unix command as I have a file which contain the records in the below format 333434 435435 435443 434543 343536 Now the total line count is 89380 , now i want to create a separate I am trying to split my large big file into small bits using the line... (2 Replies)
Discussion started by: punpun66
2 Replies

8. Shell Programming and Scripting

How to split a file based on pattern line number?

Hi i have requirement like below M <form_name> sdasadasdMklkM D ...... D ..... M form_name> sdasadasdMklkM D ...... D ..... D ...... D ..... M form_name> sdasadasdMklkM D ...... M form_name> sdasadasdMklkM i want split file based on line number by finding... (10 Replies)
Discussion started by: bhaskar v
10 Replies

9. Shell Programming and Scripting

Splitting XML file on basis of line number into multiple file

Hi All, I have more than half million lines of XML file , wanted to split in four files in a such a way that top 7 lines should be present in each file on top and bottom line of should be present in each file at bottom. from the 8th line actual record starts and each record contains 15 lines... (14 Replies)
Discussion started by: ajju
14 Replies

10. Shell Programming and Scripting

Sort file based on number of delimeters in line

Hi, Need to sort file based on the number of delimeters in the lines. cat testfile /home/oracle/testdb /home /home/oracle/testdb/newdb /home/oracle Here delimeter is "/" expected Output: /home/oracle/testdb/newdb /home/oracle/testdb /home/oracle /home (3 Replies)
Discussion started by: Sumanthsv
3 Replies
SPLIT(1)						    BSD General Commands Manual 						  SPLIT(1)

NAME
split -- split a file into pieces SYNOPSIS
split -d [-l line_count] [-a suffix_length] [file [prefix]] split -d -b byte_count[K|k|M|m|G|g] [-a suffix_length] [file [prefix]] split -d -n chunk_count [-a suffix_length] [file [prefix]] split -d -p pattern [-a suffix_length] [file [prefix]] DESCRIPTION
The split utility reads the given file and breaks it up into files of 1000 lines each (if no options are specified), leaving the file unchanged. If file is a single dash ('-') or absent, split reads from the standard input. The options are as follows: -a suffix_length Use suffix_length letters to form the suffix of the file name. -b byte_count[K|k|M|m|G|g] Create split files byte_count bytes in length. If k or K is appended to the number, the file is split into byte_count kilobyte pieces. If m or M is appended to the number, the file is split into byte_count megabyte pieces. If g or G is appended to the num- ber, the file is split into byte_count gigabyte pieces. -d Use a numeric suffix instead of a alphabetic suffix. -l line_count Create split files line_count lines in length. -n chunk_count Split file into chunk_count smaller files. -p pattern The file is split whenever an input line matches pattern, which is interpreted as an extended regular expression. The matching line will be the first line of the next output file. This option is incompatible with the -b and -l options. If additional arguments are specified, the first is used as the name of the input file which is to be split. If a second additional argument is specified, it is used as a prefix for the names of the files into which the file is split. In this case, each file into which the file is split is named by the prefix followed by a lexically ordered suffix using suffix_length characters in the range ``a-z''. If -a is not speci- fied, two letters are used as the suffix. If the prefix argument is not specified, the file is split into lexically ordered files named with the prefix ``x'' and with suffixes as above. ENVIRONMENT
The LANG, LC_ALL, LC_CTYPE and LC_COLLATE environment variables affect the execution of split as described in environ(7). EXIT STATUS
The split utility exits 0 on success, and >0 if an error occurs. SEE ALSO
csplit(1), re_format(7) STANDARDS
The split utility conforms to IEEE Std 1003.1-2001 (``POSIX.1''). HISTORY
A split command appeared in Version 3 AT&T UNIX. BUGS
The maximum line length for matching patterns is 65536. BSD
May 9, 2013 BSD
All times are GMT -4. The time now is 09:47 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy