Welcome to the forums. The following AWK one-liner will do what you ask. One file per month based on the date in the fifth pipe-delimited column. The filename will be in the form YYYYMM:
Should you prefer the files to be named with just the month, MM:
Regards,
Alister
---------- Post updated at 11:13 AM ---------- Previous update was at 10:55 AM ----------
Hi,
I need to split xml-files with sizes greater than 2 gb into smaler chunks. As I dont want to end up with billions of files, I want those splitted files to have configurable sizes like 250 MB. Each file should be well formed having an exact copy of the header (and footer as the closing of the... (0 Replies)
hi all
i have a some huge html files (500MB to 1GB). Each file has multiple
<html></html> tags
<html>
.................
....................
....................
</html>
<html>
.................
....................
....................
</html>
<html>
.................... (5 Replies)
Hi ,
i have files coming in my system which are very huge in MB and GBs, all these files are in a single line, there is no newline character.
I need to get only last 700 bytes of these files, of this i am splitting the files by "split -b 700 filename" but this gives all the splitted... (2 Replies)
Hi,
I have an input file like:
111
abcdefgh
asdfghjk
dfghjkl
222
aaaaaaa
bbbbbb
333
djfhfgjktitjhgfkg
444
djdhfjkhfjkghjkfg
hsbfjksdbhjkgherjklg
fjkhfjklsahjgh
fkrjkgnj
I want to read this input file and make separate output files with the header as numric value like "111"... (9 Replies)
Hi
extending to one of my previous posted query ....
I am using
nawk -v invar1="$aa" '{print > ("ABS\_"((/\|/)?"A\_":"B\_")invar1"\_NETWORKID.txt")}' spfile.txt
to get 2 different files based on split condition i.e. "|"
Similar to invar1 variable in nawk I also need one more variable... (18 Replies)
I’m new to Linux script and not sure how to filter out bad records from huge flat files (over 1.3GB each). The delimiter is a semi colon “;”
Here is the sample of 5 lines in the file:
Name1;phone1;address1;city1;state1;zipcode1
Name2;phone2;address2;city2;state2;zipcode2;comment... (7 Replies)
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)
I was given a data file that I need to split into multiple lines/records based on a key word. The problem is that it is 2.5GB or bigger and everything I try in perl or sed causes a Segmentation fault. Can someone give me some other ideas.
The data is of the form:... (5 Replies)
Hi all,
I hope you are well. I am very happy to see your contribution. I am eager to become part of it.
I have the following question. I have two huge files to compare (almost 3GB each). The files are simulation outputs. The format of the files are as below
For clear picture, please see... (9 Replies)
Hi,
I have a Huge 7 GB file which has around 1 million records, i want to split this file into 4 files to contain around 250k messages each.
Please help me as Split command cannot work here as it might miss tags..
Format of the file is as below
<!--###### ###### START-->... (6 Replies)
Discussion started by: KishM
6 Replies
LEARN ABOUT V7
pipe
PIPE(2) System Calls Manual PIPE(2)NAME
pipe - create an interprocess channel
SYNOPSIS
pipe(fildes)
int fildes[2];
DESCRIPTION
The pipe system call creates an I/O mechanism called a pipe. The file descriptors returned can be used in read and write operations. When
the pipe is written using the descriptor fildes[1] up to 4096 bytes of data are buffered before the writing process is suspended. A read
using the descriptor fildes[0] will pick up the data. Writes with a count of 4096 bytes or less are atomic; no other process can inter-
sperse data.
It is assumed that after the pipe has been set up, two (or more) cooperating processes (created by subsequent fork calls) will pass data
through the pipe with read and write calls.
The Shell has a syntax to set up a linear array of processes connected by pipes.
Read calls on an empty pipe (no buffered data) with only one end (all write file descriptors closed) returns an end-of-file.
SEE ALSO sh(1), read(2), write(2), fork(2)DIAGNOSTICS
The function value zero is returned if the pipe was created; -1 if too many files are already open. A signal is generated if a write on a
pipe with only one end is attempted.
BUGS
Should more than 4096 bytes be necessary in any pipe among a loop of processes, deadlock will occur.
ASSEMBLER
(pipe = 42.)
sys pipe
(read file descriptor in r0)
(write file descriptor in r1)
PIPE(2)