Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Splitting a delimited text file
Top Forums Shell Programming and Scripting Splitting a delimited text file Post 302899388 by Don Cragun on Monday 28th of April 2014 05:00:08 PM
Old 04-28-2014
If your input files contain 12,000 messages, your script is invoking awk 12,000 times; not 2 times!

In your sample input in the first message in this thread you showed that the 1st line in your input file started with --dump. From those error messages, I have to assume that the 1st line of your input file does not start with that string.

If the data before the 1st line in your file starting with --dump is a mail message you want to keep, change:
Code:
awk '

to:
Code:
awk '
BEGIN {	ofn = sprintf("message:%07d", ++f)
}

otherwise, change it to:
Code:
awk '
BEGIN {	ofn = "/dev/null"
}

Note that on many filesystem types, putting 12,000 files in a single directory may make processing files in that directory slow. You might want to consider creating intermediate directories to reduce the number of files/directory.
This User Gave Thanks to Don Cragun For This Post:
lupin..the..3rd
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

splitting a pipe delimited file in unix

Could one of you shad some light on this: I need to split the file by determining the record count and than splitting it up into 4 files. Please note, this is not a fixed record length but rather a "|" delimited file. I am not sure as how to handle reminder/offset for the 4th file. For... (4 Replies)
Discussion started by: ddedic
4 Replies

2. Shell Programming and Scripting

splitting tab-delimited file with awk

Hi all, I need help to split a tab-delimited list into separate files by the filename-field. The list is already sorted ascendingly by filename, an example list would look like this; filename001 word1 word2 filename001 word3 word4 filename002 word1 word2 filename002 word3 word4... (4 Replies)
Discussion started by: perkele
4 Replies

3. Shell Programming and Scripting

splitting text file into smaller ones

Hello We have a text file with 400,000 lines and need to split into multiple files each with 5000 lines ( will result in 80 files) Got an idea of using head and tail commands to do that with a loop but looked not efficient. Please advise the simple and yet effective way to do it. TIA... (3 Replies)
Discussion started by: prvnrk
3 Replies

4. UNIX for Dummies Questions & Answers

How to convert text to columns in tab delimited text file

Hello Gurus, I have a text file containing nearly 12,000 tab delimited characters with 4000 rows. If the file size is small, excel can convert the text into coloumns. However, the file that I have is very big. Can some body help me in solving this problem? The input file example, ... (6 Replies)
Discussion started by: Unilearn
6 Replies

5. Linux

Splitting a Text File by Rows

Hello, Please help me. I have hundreds of text files composed of several rows of information and I need to separate each row into a new text file. I was trying to figure out how to split the text file into different text files, based on each row of text in the original text file. Here is an... (2 Replies)
Discussion started by: dvdrevilla
2 Replies

6. UNIX for Dummies Questions & Answers

Converting a text file with irregular spacing into a space delimited text file?

I have a text file with irregular spacing between values which makes it really difficult to manipulate. Is there an easy way to convert it into a space delimited text file so that all the spaces, double spaces, triple spaces, tabs between numbers are converted into spaces. The file looks like this:... (5 Replies)
Discussion started by: evelibertine
5 Replies

7. Shell Programming and Scripting

splitting tab delimited strings

hi i have a requirement to input a string to a shell script and to split the string to multiple fields, the string is copied from a row of three columns (name,age,address) in an excel sheet. the three columns (from excel) are seperated with a tab when pasted in the command prompt, but when the ... (2 Replies)
Discussion started by: midhun19
2 Replies

8. UNIX for Dummies Questions & Answers

Need to convert a pipe delimited text file to tab delimited

Hi, I have a rquirement in unix as below . I have a text file with me seperated by | symbol and i need to generate a excel file through unix commands/script so that each value will go to each column. ex: Input Text file: 1|A|apple 2|B|bottle excel file to be generated as output as... (9 Replies)
Discussion started by: raja kakitapall
9 Replies

9. Shell Programming and Scripting

Splitting delimited string into rows

Hi, I have a requirement that has 50-60 million records that we need to split a delimited string (Delimeter is newline) into rows. Source Date: SerialID UnidID GENRE 100 A11 AAAchar(10)BBB 200 B11 CCCchar(10)DDD(10)ZZZZ Field 'GENRE' is a string with new line as delimeter and not sure... (5 Replies)
Discussion started by: techmoris
5 Replies

10. Shell Programming and Scripting

Splitting a text file into smaller files with awk, how to create a different name for each new file

Hello, I have some large text files that look like, putrescine Mrv1583 01041713302D 6 5 0 0 0 0 999 V2000 2.0928 -0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 5.6650 0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 3.5217 ... (3 Replies)
Discussion started by: LMHmedchem
3 Replies

LEARN ABOUT LINUX

irsend

IRSEND(1)							   User Commands							 IRSEND(1)

NAME

       irsend - basic LIRC program to send infra-red commands

SYNOPSIS

       irsend [options] DIRECTIVE REMOTE CODE [CODE...]

DESCRIPTION

       Asks the lircd daemon to send one or more CIR (Consumer Infra-Red) commands. This is intended for remote control of electronic devices such
       as TV boxes, HiFi sets, etc.

       DIRECTIVE can be:
	  SEND_ONCE	    - send CODE [CODE ...] once
	  SEND_START	    - start repeating CODE
	  SEND_STOP	    - stop repeating CODE
	  LIST		    - list configured remote items
	  SET_TRANSMITTERS  - set transmitters NUM [NUM ...]
	  SIMULATE	    - simulate IR event

       REMOTE is the name of a remote, as described in the lircd configuration file.

       CODE is the name of a remote control key of REMOTE, as it appears in the lircd configuration file.

       NUM is the transmitter number of the hardware device.

       For the LIST DIRECTIVE, REMOTE and/or CODE can be empty:

	  LIST	 ""    ""   - list all configured remote names
	  LIST REMOTE  ""   - list all codes of REMOTE
	  LIST REMOTE CODE  - list only CODE of REMOTE

       The SIMULATE command only works if it has been explicitly enabled in lircd.

       -h --help
	      display usage summary

       -v --version
	      display version

       -d --device
	      use given lircd socket [/var/run/lirc/lircd]

       -a --address=host[:port]
	      connect to lircd at this address

       -# --count=n
	      send command n times

EXAMPLES

	  irsend LIST DenonTuner ""
	  irsend SEND_ONCE  DenonTuner PROG-SCAN
	  irsend SEND_ONCE  OnkyoAmpli VOL-UP VOL-UP VOL-UP VOL-UP
	  irsend SEND_START OnkyoAmpli VOL-DOWN ; sleep 3
	  irsend SEND_STOP  OnkyoAmpli VOL-DOWN
	  irsend SET_TRANSMITTERS 1
	  irsend SET_TRANSMITTERS 1 3 4
	  irsend SIMULATE "0000000000000476 00 OK TECHNISAT_ST3004S"

FILES

       /etc/lirc/lircd.conf
	      Default lircd configuration file.  It should contain all the remotes, their infra-red codes and the corresponding timing	and  wave-
	      form details.

DIAGNOSTICS

       If lircd is not running (or /var/run/lirc/lircd lacks write permissions) irsend aborts with the following diagnostics:
       "irsend: could not connect to socket"
       "irsend: Connection refused" (or "Permission denied").

SEE ALSO

       The documentation for lirc is maintained as html pages. They are located under html/ in the documentation directory.

       lircd(8), mode2(1), smode2(1), xmode2(1), irrecord(1), irw(1), http://www.lirc.org.

irsend 0.9.0-pre1						   October 2010 							 IRSEND(1)
All times are GMT -4. The time now is 05:26 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy