Sponsored Content
Top Forums Shell Programming and Scripting Split a non delimited file into columns depending on user input Post 302959935 by Don Cragun on Sunday 8th of November 2015 04:49:16 AM
Old 11-08-2015
Quote:
Originally Posted by RudiC
You wanted to enter the substring coordinates in the n,m format. Try this small adaption of Don Cragun's suggestion:
Code:
for ((i=1 ; i <= $2; i++))
  do    echo "Enter starting digit and length of $i string"; IFS="," read a[$i] b[$i] REST
  done 
      
while read line
  do    for ((i=1; i < $2; i++))
          do    printf '%s ' "${line:${a[$i]}:${b[$i]}}"
          done
        printf '%s\n' "${line:${a[$2]}:${b[$2]}}"
  done <$1

@Don Cragun: there seems to be missing the $ sign preceding the i loop variable?
In the standards, a variable name (but, obviously, not a positional parameter) in expression in:
Code:
$((expression))

can be presented with or without a leading <dollar-sign> character to get the value to which the variable expands. At least in bash and in ksh, the same is true in the expression in
Code:
${array_name[expression]}

These 2 Users Gave Thanks to Don Cragun For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

split file depending on content

Hi, I have a file which contains records of data. I need to split the file into multiple files depending upon the value of last field. How do i read the last field of each record in the file??? Regards, Chaitrali (4 Replies)
Discussion started by: Chaitrali
4 Replies

2. Shell Programming and Scripting

Split file into multiple files depending upon first 4 digits

Hi All, I have a file like below: 1016D"ddd","343","1299" 1016D"ddd","3564","1299" 1016D"ddd","3297","1393" 1016D"ddd","32989","1527" 1016D"ddd","346498","1652" 2312D"ddd","3269","1652" 2312D"ddd","328","1652" 2312D"ddd","2224","2100" 3444D"ddd","252","2100" 3444D"ddd","2619","2100"... (4 Replies)
Discussion started by: deepakgang
4 Replies

3. Shell Programming and Scripting

How to split pipe delimited file

I have a pipe delimited input file as below. First byte of the each line indicate the record type. Then i need to split the file based on record_type = null,0,1,2,6 and create 5 files. How do i do this in a ksh script? Pls help |sl||SL|SL|SL|1996/04/03|1988/09/15|C|A|sl||||*|... (4 Replies)
Discussion started by: njgirl
4 Replies

4. Shell Programming and Scripting

How to split a data file into separate files with the file names depending upon a column's value?

Hi, I have a data file xyz.dat similar to the one given below, 2345|98|809||x|969|0 2345|98|809||y|0|537 2345|97|809||x|544|0 2345|97|809||y|0|651 9685|98|809||x|321|0 9685|98|809||y|0|357 9685|98|709||x|687|0 9685|98|709||y|0|234 2315|98|809||x|564|0 2315|98|809||y|0|537... (2 Replies)
Discussion started by: nithins007
2 Replies

5. Shell Programming and Scripting

How to Split File to 2 depending on condition?

Hi , cat myfile.txt ! 3100.2.0.5 ! 3100.2.22.4 ! 3100.2.30.33 ! 3100.2.4.1 ! ! 3100.2.0.5 ! 3100.2.22.4 ! 3100.2.22.11 ! 3100.2.4.1 ! ! 3100.2.0.5 ! 3100.2.2.50 ! 3100.2.22.11 ! 3100.2.4.1 ! ! 3100.2.0.5 ! 3100.2.22.4 ! 3100.2.30.33 ! 3100.2.4.1 ! ! 3100.2.0.5 ! 3100.2.22.4 !... (6 Replies)
Discussion started by: OTNA
6 Replies

6. Shell Programming and Scripting

Split file depending on Column Value

Hi , my file look likes below , cat file.csv 12/09/2014,50,5,0,300 12/09/2014, ,5,0,300 12/09/2014,50,,,300 i need to split file , the first one contains values (2nd column is 50 , 3rd and fourth column is null ) the second file contains all others firstfile ... (2 Replies)
Discussion started by: ubaisalih
2 Replies

7. Shell Programming and Scripting

How to split a file with delimited string?

I have a unix file text.txt with below content aaaaa bbbbbbb cccccccccc As of 2013 ddddddddd eeeeeeeeee eeeeeeeee fffffffff As of 2014 gggggggggggg hhhhhhhhh iiiiiiiiiiiiiiii As of 2016 Now I've to split this file with each file ending with line 'As of' . Please suggest how can I do... (6 Replies)
Discussion started by: Steven77
6 Replies

8. Shell Programming and Scripting

Checking the file depending on the input variable

Hi I have a requirement of taking time as input variable outside the script.depending on the time it will check the file output .like ./script.sh <30 min> so script.sh should run every 5 minutes ie.6 times to check the output file.Can any one please help here. (7 Replies)
Discussion started by: netdbaind
7 Replies

9. UNIX for Dummies Questions & Answers

Split files based on user input

Hi All, I have a UNIX script which reads "PxyType" (read PxyType) as input from user and a file (eg : "File.json") with the list all PxyType's. Based on the user input for "PxyType" in "File.json", I want to redirect each matched line to a different file ("File1,2,3,..json"). Can you... (7 Replies)
Discussion started by: Deena1984
7 Replies

10. Shell Programming and Scripting

Compare 2 columns from the same file and print a value depending on the result

Hello Unix gurus, I have a file with this format (example values): label1 1 0 label2 1 0 label3 0.4 0.6 label4 0.5 0.5 label5 0.1 0.9 label6 0.9 0.1 in which: column 1 is a row label column 2 and 3 are values I would like to do a simple operation on this table and get the... (8 Replies)
Discussion started by: ksennin
8 Replies
fmt(1)							      General Commands Manual							    fmt(1)

NAME
fmt - Formats mail messages prior to sending SYNOPSIS
fmt [-width] file... DESCRIPTION
The fmt command reads the input file or files, or standard input if no files are specified, and writes to standard output a version of the input with lines of a length as close as possible to width columns. (Because fmt is internationalized software, the number of display col- umns is not necessarily equivalent to the number of bytes.) The fmt command both joins and splits lines to achieve the desired width, but words are never joined or split; spaces are always preserved, and lines are split at spaces only. In effect, fmt ignores newline characters in the input and wraps words to make lines a close as possi- ble to width columns, resulting in individual lines of varying length but a consistent (new) text width overall. Because blank lines are always preserved, fmt does not merge paragraphs separated by blank lines. If you specify more than one file, the files are concatenated as input to fmt. If you do not specify -width, the default line length is 72 columns. Spacing at the beginning of input lines is always preserved in the output. The fmt command is generally used to format mail messages to improve their appearance before they are sent. It may also be useful, how- ever, for other simple formatting tasks. For example, when you are using vi, you can use the command :%!fmt -60 to reformat your text so that all lines are approximately 60 columns long. NOTES
The fmt command is a fast, simple formatting program. Standard text editing programs are more appropriate than fmt for complex formatting operations. Do not use the fmt command if the message contains embedded messages or preformatted information from other files. This com- mand formats the heading information in embedded messages and may change the format of preformatted information. EXAMPLES
file1 contains these lines: Australia is an island-continent, home to many very interesting plants and animals. To reformat this text to a narrower width, enter: fmt -30 file1 This results in the following, displayed on your screen: Australia is an island-continent, home to many very interesting plants and animals. To make file1 wider, enter: fmt -60 file1 This results in: Australia is an island-continent, home to many very interesting plants and animals. To format a message you have created with the mailx editor, at the left margin enter: ~|fmt After you enter the command, your message is formatted, in this case to the default line length of 72 columns, and the word continue is displayed to indicate that you can enter more information or send your message. SEE ALSO
Commands: mail(1), mailx(1), vi(1) fmt(1)
All times are GMT -4. The time now is 11:56 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy