Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Insert a line in a sorted text file(s)
Top Forums UNIX for Dummies Questions & Answers Insert a line in a sorted text file(s) Post 302539194 by raptor25 on Friday 15th of July 2011 03:39:50 PM
Old 07-15-2011
Insert a line in a sorted text file(s)
Hello,

I am trying to add a line (usually just a word) to some text files in a directory that are already sorted. I just don't want to run the sort command again because it can take a long time when the text or log files are really huge. I have a bashscript that will take in the 1st argument ($1) and add it to the .txt files by appending the word to the end, then sorts it and the output goes to a temp file, it takes forever because some .txt files are very large, (over 1 gig). Any suggestions to add a word quicker? This is what I have:



Code:
#!/bin/bash 

for iFile in `ls *.txt`
do
echo $iFile

echo $1 >> $iFile | cat $iFile | sort > temp.txt
  rm $iFile
  mv temp.txt $iFile


done

Thanks
Last edited by raptor25; 07-15-2011 at 05:34 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Insert text file at a certain line.

I need to insert a file called temp_impact (which has about 15 lines in it) to a file called 11.23cfg starting at line 33. I searched the forums and found the sed '34i\ test' 11.23cfg > newfile That will enter word test at the appropriate line, but i need the entire file dumped there. Any... (4 Replies)
Discussion started by: insania
4 Replies

2. Shell Programming and Scripting

how to insert a extra line in a text file

how to insert a extra line in a text file using a sh command iam trying to think of a way to add a extra line but without deleting the whole text do anyone have any ideas (2 Replies)
Discussion started by: bhaviknp
2 Replies

3. Shell Programming and Scripting

Insert a line in a text file

So I need to write lines into line X of file X. I can get the file by doing: cfgnumber=$(cat -n -comm.cfg| grep -i "servicegroup_name 24x7-comunicacions") echo $cfgnumber it outputs the Line where it finds now I need to start writing something right bellow that line. thanks (10 Replies)
Discussion started by: 4scriptmoni
10 Replies

4. Shell Programming and Scripting

How to insert some constant text at beginig of each line within a text file.

Dear Folks :), I am new to UNIX scripting and I do not know how can I insert some text in the first column of a UNIX text file at command promtp. I can do this in vi editor by using this command :g/^/s//BBB_ e,g I have a file named as Test.dat and it containins below text: michal... (4 Replies)
Discussion started by: Muhammad Afzal
4 Replies

5. Shell Programming and Scripting

Sed insert text at first line of empty file

I can't seem to get sed to allow me to insert text in the first line of an empty file. I have a file.txt that is a 0 byte file. I want sed to insert " fooBar" onto the first line. I've tried a few options and nothing seems to work. They work just fine if there's text in the file tho. Help? (4 Replies)
Discussion started by: DC Slick
4 Replies

6. Shell Programming and Scripting

Using sed to insert text file at first line

sed '1r file.txt' <source.txt >desti.txt This example will insert 'file.txt' between line 1 and 2 of source.txt. sed '0r file.txt' <source.txt >desti.txt gives an error message. Does anyone know how 'sed' can insert 'file.txt' before the first line of source.txt? (18 Replies)
Discussion started by: psve
18 Replies

7. Shell Programming and Scripting

Sort a line and Insert sorted word(s) in a line

Hello, I am looking to automate a task - which is updating an existing access control instruction of a server and making sure that the attributes defined in the instruction is in sorted order. The instructions will be of a specific syntax. For example lets assume below listed is one of an... (6 Replies)
Discussion started by: sanjayroc
6 Replies

8. UNIX for Dummies Questions & Answers

Insert a line in a text file

I want to insert a line with text after the 9th line of a text file. How would I do this using sed or awk? (2 Replies)
Discussion started by: lost.identity
2 Replies

9. Shell Programming and Scripting

How to read a text file line by line and insert into a database table?

I have a test file that I want to read and insert only certain lines into the the table based on a filter. 1. Rread the log file 12 Hours back Getdate() -12 Hours 2. Extract the following information on for lines that say "DUMP is complete" A. Date B. Database Name C.... (2 Replies)
Discussion started by: JolietJake
2 Replies

10. UNIX for Beginners Questions & Answers

Insert a line of text on nth line of a file

Hi All, I am using UNix Sun OS sun4u sparc SUNW,SPARC-Enterprise My intention is to insert a line of text after 13th line of every file inside a particular directory. While trying to do it for a single file , i am using sed sed '3 i this is the 4th line' filename sed: command garbled: 3... (5 Replies)
Discussion started by: gotamp
5 Replies

LEARN ABOUT SUSE

word-list-compress

WORD-LIST-COMPRESS(1)					 Aspell Abbreviated User's Manual				     WORD-LIST-COMPRESS(1)

NAME

       word-list-compress - word list compressor/decompressor for GNU Aspell

SYNOPSIS

       word-list-compress c[ompress] | d[ecompress]

DESCRIPTION

       word-list-compress compresses or decompresses sorted word lists for use with the GNU Aspell spell checker.

COMMANDS

       -c, c, compress
	      compress the plain text word list read from standard input.

       -d, d, decompress
	      decompress the compressed word list read from standard input.

EXAMPLES

       Here are a few examples of how you can use word-list-compress

       word-list-compress d <wordlist.cwl >wordlist.txt
	      Decompress file wordlist.cwl to text file wordlist.txt

       word-list-compress c <wordlist.wl >wordlist.cwl 2>errors.txt
	      Compress wordlist.wl to wordlist.cwl and send any error messages to a text file named errors.txt

       LC_COLLATE=C sort -u <wordlist.txt | word-list-compress c >wordlist.cwl
	      Sort a word list, then pipe it to word-list-compress to create a compressed binary wordlist.cwl file.

       word-list-compress d <words.cwl | aspell create master ./words.rws
	      Decompress a wordlist, then pipe it to aspell(1) to create a spelling list.  Please check the aspell(1) info manual for proper usage
	      and options.

TIPS

       Word-list-compress is best used with sorted word list type files.  It is not a general purpose  compression  program  since  the  resulting
       files may actually increase in size.

       Word-list-compress  accepts  up to 255 text characters in the range of {0x21...0xFF}. If your word list requires a larger character set for
       certain languages or longer length for multi-word, scientific, medical, technical or other use, then it is recommended  that  you  compress
       your word list using prezip-bin(1)

DIAGNOSTICS

       Word-list-compress  normally exits with a return code of 0. If it encounters an error, a message is sent to standard error output (stderr),
       and word-list-compress exits with a non-zero return value.  Error messages are listed below:

       (display help/usage message)
	      Unknown command given on the command line so word-list-compress displays a usage message to standard error output.

       Corrupt Input
	      This is only for the decompression command d.  The input file is of an unknown format or the input file/stream  is  corrupted.   You
	      may  have  some valid output, but word-list-compress could not complete the process.  If the input file is a compressed wordlist but
	      you have no output file, then it may be a newer prezip-bin(1) version of compressed file, if so, try  decompressing  the	file  with
	      prezip-bin(1) instead.

       Output Data Error
	      The output is full, write protected, or has an error and can no longer be written to.

SEE ALSO

       aspell(1), aspell-import(1), prezip-bin(1), run-with-aspell(1)

       Aspell is fully documented in its Texinfo manual.  See the `aspell' entry in info for more complete documentation.

REPORTING BUGS

       For help, see the Aspell homepage at <http://aspell.net> and send bug reports/comments to the Aspell user list at the above address.

AUTHOR

       This manual page was written by Aaron Lehmann <aaronl@vitelus.com>, Brian Nelson <pyro@debian.org> and Jose Da Silva <digital@joescat.com>.

GNU
								    2005-09-05						     WORD-LIST-COMPRESS(1)
All times are GMT -4. The time now is 07:13 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy