Sponsored Content
Top Forums Shell Programming and Scripting How to extract every 6-th character in a line? Post 303026097 by SANDO on Tuesday 20th of November 2018 05:44:07 AM
Old 11-20-2018
How to extract every 6-th character in a line?

Hi, I have a file consist of 25000 lines and each line has 2 columns 1 column with 6 numeric characters and 2nd one with 45000 numeric characters (not delimited). I want to take every 7th character form the 2nd column, keeping the first column. I made it in several steps but it run for 7 hours to solution. Does anyone has faster solution? Thanks!

Code:
example
File dd0.txt 

100001 1100000000011000011000012222111111111100000000000001122222112221111110012222122222220100000000 ... up to 45000
100002 1100000000011000011000012222111111111100000000000001122222112221111110012222122222220100000000 ... up to 45000

125000 1100000000011000011000012222111111111100000000000001122222112221111110012222122222220100000000 ... up to 45000


result
100001 10001100220120 ... up to 6429
100002 10001100220120 ... up to 6429

125000 10001100220120 ... up to 6429


Last edited by Neo; 11-20-2018 at 08:13 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Extract a character

HI Guys, Have a Doubt...... I have a pattern "abcdef" and i need to extract the third character..ie(c) How to achieve it? (10 Replies)
Discussion started by: aajan
10 Replies

2. Shell Programming and Scripting

extract character + 1

Hi, I would like extract from a file a character or pattern after ( n + 1) a specific pattern (n) . ( i supposed with awk) how could i do ? Thanks in advance. (1 Reply)
Discussion started by: francis_tom
1 Replies

3. HP-UX

How to remove new line character and append new line character in a file?

Hi Experts, I have data coming in 4 columns and there are new line characters \n in between the data. I need to remove the new line characters in the middle of the row and keep the \n character at the end of the line. File is comma (,) seperated. Eg: ID,Client ,SNo,Rank 37,Airtel \n... (8 Replies)
Discussion started by: sasikari
8 Replies

4. Shell Programming and Scripting

Extract character between specific line numbers

Hi guys, I have txt file and I would need to extract all the contents between specific line numbers. Line 1: apple Line 2: orange Line 3: mango Line 4: grapes Line 5: pine apple I need to extract the content between line 2 and 4, including the contents of Line 2 and 4 so the ouput... (2 Replies)
Discussion started by: gowrishankar05
2 Replies

5. Shell Programming and Scripting

Extract a character specifying position

hi , i am having a file Full_ARTMAS_20110510152425.xml in my local directory. i wanted to extract the character at the 35143546 th position at line 1 of this file.Can any body help me how to do it??? regards Anjali (2 Replies)
Discussion started by: angel12345
2 Replies

6. Solaris

Line too long error Replace string with new line line character

I get a file which has all its content in a single row. The file contains xml data containing 3000 records, but all in a single row, making it difficult for Unix to Process the file. I decided to insert a new line character at all occurrences of a particular string in this file (say replacing... (4 Replies)
Discussion started by: ducati
4 Replies

7. Shell Programming and Scripting

Search for a pattern,extract value(s) from next line, extract lines having those extracted value(s)

I have hundreds of files to process. In each file I need to look for a pattern then extract value(s) from next line and then search for value(s) selected from point (2) in the same file at a specific position. HEADER ELECTRON TRANSPORT 18-MAR-98 1A7V TITLE CYTOCHROME... (7 Replies)
Discussion started by: AshwaniSharma09
7 Replies

8. Shell Programming and Scripting

Sed: delete on each line before a character and after a character

Hi there, A total sed noob here. Is there a way using sed to delete everything before a character AND after another character on each line in a file? The deletion should also delete the indicating characters(here: an opening and a closing parenthesis). The original file would look like... (3 Replies)
Discussion started by: bnbsd
3 Replies

9. Shell Programming and Scripting

Extract First character in Second column

Hi, I need to extract the first character of second column of my file. If the condition matches, then I need to print the 2nd and 3rd column as my output I tried below mentioned query but it was not working awk -F'|' '$2~/^5/' Sgn_group.txt File Name : Sgn_group.txt country... (2 Replies)
Discussion started by: suresh_target
2 Replies

10. Shell Programming and Scripting

Read character by character in line in which space is also included

Hi friend, I have one file , and i want to read that file character by character. I need this script in ksh. while using read option with -n1 am getting error. while read -n1 c read has bad option And if i am using below script, then if in a line has space like this ( Pallvi mahajan)... (10 Replies)
Discussion started by: pallvi_mahajan
10 Replies
CUT(1)							    BSD General Commands Manual 						    CUT(1)

NAME
cut -- select portions of each line of a file SYNOPSIS
cut -b list [-n] [file ...] cut -c list [file ...] cut -f list [-d delim] [-s] [file ...] DESCRIPTION
The cut utility selects portions of each line (as specified by list) from each file and writes them to the standard output. If no file argu- ments are specified, or a file argument is a single dash ('-'), cut reads from from the standard input. The items specified by list can be in terms of column position or in terms of fields delimited by a special character. Column numbering starts from 1. The list option argument is a comma or whitespace separated set of increasing numbers and/or number ranges. Number ranges consist of a num- ber, a dash ('-'), and a second number and select the fields or columns from the first number to the second, inclusive. Numbers or number ranges may be preceded by a dash, which selects all fields or columns from 1 to the first number. Numbers or number ranges may be followed by a dash, which selects all fields or columns from the last number to the end of the line. Numbers and number ranges may be repeated, over- lapping, and in any order. It is not an error to select fields or columns not present in the input line. The options are as follows: -b list The list specifies byte positions. -c list The list specifies character positions. -d delim Use the first character of delim as the field delimiter character instead of the tab character. -f list The list specifies fields, delimited in the input by a single tab character. Output fields are separated by a single tab character. -n Do not split multi-byte characters. -s Suppress lines with no field delimiter characters. Unless specified, lines with no delimiters are passed through unmodified. ENVIRONMENT
The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of cut if the -n option is specified. Their effect is described in environ(7). EXAMPLES
Extract users' login names and shells from the system passwd(5) file as ``name:shell'' pairs: cut -d : -f 1,7 /etc/passwd Show the names and login times of the currently logged in users: who | cut -c 1-16,26-38 DIAGNOSTICS
The cut utility exits 0 on success, and >0 if an error occurs. SEE ALSO
paste(1) STANDARDS
The cut utility conforms to IEEE Std 1003.2-1992 (``POSIX.2''). HISTORY
A cut command appeared in AT&T System III UNIX. BUGS
The -c option is a synonym for the -b option, which causes incorrect behaviour in locales that support multibyte characters. When operating on fields (-f option is specified), cut does not recognise multibyte characters, and the delim character is recognised in the middle of multibyte sequences. BSD
June 6, 1993 BSD
All times are GMT -4. The time now is 03:51 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy