Sponsored Content
Top Forums Shell Programming and Scripting Every nth line with different starting point Post 302358748 by nxp on Sunday 4th of October 2009 01:04:49 PM
Old 10-04-2009
well, (NR-1)%3+1 was just a test, the increments between lines were actually 3325 in my actual input file, so i replace 3 with 3325! so i am dealing with sth like 33250 files in total, sonsidering 10 fields!
cheers
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Manage starting point in shell script.

Hi, I'd like to run a script with an optional starting point. Meaning that if no parameter for the script => Do everything, otherwise start from the point specified in the parameter and continue till the end. I thought of using the "case ..." but I have no result. Script: # ---------------... (6 Replies)
Discussion started by: ai_dba
6 Replies

2. Shell Programming and Scripting

how to delete text from line starting pattern1 up to line before pattern2?

My data is xml'ish (here is an excerpt) :- <bag name="mybag1" version="1.0"/> <contents id="coins"/> <bag name="mybag2" version="1.1"/> <contents id="clothes"/> <contents id="shoes"/> <bag name="mybag3" version="1.6"/> I want to delete line containing mybag2 and its subsequent... (5 Replies)
Discussion started by: repudi8or
5 Replies

3. Shell Programming and Scripting

How to start reading from the nth line till the last line of a file.

Hi, For my reuirement, I have to read a file from the 2nd line till the last line<EOF>. Say, I have a file as test.txt, which as a header record in the first line followed by records in rest of the lines. for i in `cat test.txt` { echo $i } While doing the above loop, I have read... (5 Replies)
Discussion started by: machomaddy
5 Replies

4. UNIX for Dummies Questions & Answers

how to delete nth line

can you please tell me (1) how to delete 1st and 3rd line only from a file. (2) How to delete last 4 lines in a file that has 2 blank lines out of last 4 lines. Thank you. (2 Replies)
Discussion started by: Ariean
2 Replies

5. Shell Programming and Scripting

Calculating average for every Nth line in the Nth column

Is there an awk script that can easily perform the following operation? I have a data file that is in the format of 1944-12,5.6 1945-01,9.8 1945-02,6.7 1945-03,9.3 1945-04,5.9 1945-05,0.7 1945-06,0.0 1945-07,0.0 1945-08,0.0 1945-09,0.0 1945-10,0.2 1945-11,10.5 1945-12,22.3... (3 Replies)
Discussion started by: ncwxpanther
3 Replies

6. Shell Programming and Scripting

With script bash, read file line per line starting at the end

Hello, I'm works on Ubuntu server My goal : I would like to read file line per line, but i want to started at the end of file. Currently, I use instructions : while read line; do COMMAND done < /var/log/apache2/access.log But, the first line, i don't want this. The file is long... (5 Replies)
Discussion started by: Fuziion
5 Replies

7. 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

8. UNIX for Dummies Questions & Answers

How to grep a line not starting with # from a file (there are two lines starting with # and normal)?

e.g. File name: File.txt cat File.txt Result: #INBOUND_QUEUE=FAQ1 INBOUND_QUEUE=FAQ2 I want to get the value for one which is not commented out. Thanks, (3 Replies)
Discussion started by: Tanu
3 Replies

9. Shell Programming and Scripting

Printing string from last field of the nth line of file to start (or end) of each line (awk I think)

My file (the output of an experiment) starts off looking like this, _____________________________________________________________ Subjects incorporated to date: 001 Data file started on machine PKSHS260-05CP ********************************************************************** Subject 1,... (9 Replies)
Discussion started by: samonl
9 Replies

10. Shell Programming and Scripting

Remove new line starting with a numeric value and append it to the previous line

Hi, i have a file with multiple entries. After some tests with sed i managed to get the file output as follows: lsn=X-LINK-IN0,apc=661:0,state=avail,avail/links=1/1, 00,2110597,2094790,0,81,529,75649011,56435363, lsn=TM1ITP1-AM1ITP1-LS,apc=500:0,state=avail,avail/links=1/1,... (5 Replies)
Discussion started by: nms
5 Replies
wc(1)							      General Commands Manual							     wc(1)

NAME
wc - Counts the lines, words, characters, and bytes in a file SYNOPSIS
wc [-c | -m] [-lw] [file...] The wc command counts the lines, words, and characters or bytes in a file, or in the standard input if you do not specify any files, and writes the results to standard output. It also keeps a total count for all named files. STANDARDS
Interfaces documented on this reference page conform to industry standards as follows: wc: XCU5.0 Refer to the standards(5) reference page for more information about industry standards and associated tags. OPTIONS
Counts bytes in the input. Counts lines in the input. Counts characters in the input. Counts words in the input. OPERANDS
Specifies the pathname of the input file. If this operand is omitted, standard input is used. DESCRIPTION
A word is defined as a string of characters delimited by white space as defined in the X/Open Base Definitions for XCU4. The wc command counts lines, words, and bytes by default. Use the appropriate options to limit wc output. Specifying wc without options is the equivalent of specifying wc -lwc. If any options are specified, only the requested information is output. The order in which counts appear in the output line is lines, words, bytes. If an option is omitted, then the corresponding field in the output is omitted. If the -m option is used, then character counts replace byte counts. When you specify one or more files, wc displays the names of the files along with the counts. If standard input is used, then no file name is displayed. EXIT STATUS
The following exit values are returned: Successful completion. An error occurred. EXAMPLES
To display the number of lines, words, and bytes in the file text, enter: wc text This results in the following output: 27 185 722 text The numbers 27, 185, and 722 are the number of lines, words, and bytes, respectively, in the file text. To display only one or two of the three counts include the appropriate options. For example, the following command displays only line and byte counts: wc -cl text 27 722 text To count lines, words, and bytes in more than one file, use wc with more than one input file or with a file name pat- tern. For example, the following command can be issued in a directory containing the files text, text1, and text2: wc -l text* 27 text 112 text1 5 text2 144 total The numbers 27, 112, and 5 are the numbers of lines in the files text, text1, and text2, respectively, and 144 is the total number of lines in the three files. The file name is always appended to the output. To obtain a pure number for things like reporting purposes, pipe all input to the wc command using cat. For example, the following command will report the total count of characters in all files in a directory. echo There are `cat *.c | wc -c` characters in *.c files There are 1869 characters in *.c files ENVIRONMENT VARIABLES
The following environment variables affect the execution of wc: Provides a default value for the internationalization variables that are unset or null. If LANG is unset or null, the corresponding value from the default locale is used. If any of the internationalization vari- ables contain an invalid setting, the utility behaves as if none of the variables had been defined. If set to a non-empty string value, overrides the values of all the other internationalization variables. Determines the locale for the interpretation of sequences of bytes of text data as characters (for example, single-byte as opposed to multibyte characters in arguments and input files) and which characters are defined as white space characters. Determines the locale for the format and contents of diagnostic messages written to standard error and informative messages written to standard output. Determines the location of message catalogues for the processing of LC_MESSAGES. SEE ALSO
Commands: cksum(1), ls(1) Standards: standards(5) wc(1)
All times are GMT -4. The time now is 03:59 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy