Most efficient method to extract values from text files Post: 302915641

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

File transformation - what is most efficient method

I've done quite a bit of searching on this but cannot seem to find exactly what I'm looking for. Say I have a | delimited input file with 6 columns and I need to change the value of a few columns and create an output file. With my limited knowledge I can do this with many lines of code but want...

2. Shell Programming and Scripting

multiplying values from two text files

Im very new to programming. But I would like to write a script which extracts and multiply values from 2 txt and output as a new file. Can someone please teach me how to write it? Thank you so much for example File A File B 1 34 1 2 2 13 2 2 3 8 3 3 File C output 1 68 2...

3. Shell Programming and Scripting

Extract text and store in separate files

Hi, I have a file which looks like this: .I 1 some text .A this is the first line .I 2 some text again .B this is the second line .I 3 again some text .C this is the third line I want to have my output like this in separate files:

4. Programming

modifying 2 or more values using method in Java

i wanna make modification in two or more identifiers,using a method in JAVA , but the only way to do this is by returning a value ,then also only one variable value can be modified .. one way 2 do do this is by use of array and passing its name in method ,, please suggest a different way of doing...

5. Homework & Coursework Questions

Efficient Text File Writing

Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Write a template main.c file via shell script to make it easier for yourself later. The issue here isn't writing...

6. Shell Programming and Scripting

Efficient population of array from text file

Hi, I am trying to populate an array with data from a text file. I have a working method using awk but it is too slow and inefficent. See below. The text file has 70,000 lines. As awk is a line editor it reads each line of the file until it gets to the required line and then processes it....

7. Shell Programming and Scripting

Efficient method of determining if a string is in a file.

Hi, I was hoping someone could suggest an alternative to code I currently have as mine takes up far too much processor time and it to slow. The situation: I have a programme that runs on some files just before they are zipped up and archived, the program appends a one line summary of the...

8. Shell Programming and Scripting

Extract lines from text files

I have some files containing the following data # RESIDUE AA STRUCTURE BP1 BP2 ACC N-H-->O O-->H-N N-H-->O O-->H-N TCO KAPPA ALPHA PHI PSI X-CA Y-CA Z-CA 1 196 A M 0 0 230 0, 0.0 2,-0.2 0, 0.0 0, 0.0 0.000 360.0 360.0 360.0 76.4 21.7 -6.8 11.3 2 197 A D + 0 0 175 1,-0.1 2,-0.1 0, 0.0 0, 0.0...

9. UNIX for Dummies Questions & Answers

More efficient way to print variable values?

Hello, Through the process of a executing a shell script, I extract the values for a number of variables (arbitrarily declared as a through i) and towards the end I print them out like shown below: #!bin/sh # bits of code to get values for the variables ...... ...... # print the values...

10. Shell Programming and Scripting

Portable and efficient way to add text after pattern

Shell: sh/bash OS: Linux (all unix flavors) Suppose i have a variable with this content: ArgZ=' import os import sys MySpecialpath = os.path.abspath(sys.argv) # ' ArgZB='#REGEN #REGEN #REGEN ' I want to add this text to a file/script, only under the following conditions: 1. ...

LEARN ABOUT DEBIAN

ckeygen

CKEYGEN(1)																CKEYGEN(1)

NAME

       ckeygen - manipulate public/private keys

SYNOPSIS

       ckeygen [-b bits] [-f filename] [-t type] [-C comment] [-N new passphrase] [-P old passphrase] [-l] [-p] [-q] [-y]

DESCRIPTION

       The --help prints out a usage message to standard output.

       -b, --bits <bits>
	      Number of bits in the key to create (default: 1024)

       -f, --filename <file name>
	      Filename of the key file.

       -t, --type <type>
	      Type of key (rsa or dsa).

       -C, --comment <comment>
	      Provide a new comment.

       -N, --newpass <pass phrase>
	      Provide new passphrase.

       -P, --pass <pass phrase>
	      Provide old passphrase.

       -l, --fingerprint
	      Show fingerprint of key file.

       -p, --changepass
	      Change passphrase of private key file.

       -q, --quiet
	      Be quiet.

       -y, --showpub
	      Read private key file and print public key.

       --version
	      Display version number only.

DESCRIPTION

       Manipulate public/private keys in various ways.	If no filename is given, a file name will be requested interactively.

AUTHOR

       Written by Moshe Zadka, based on ckeygen's help messages

REPORTING BUGS

       To report a bug, visit http://twistedmatrix.com/bugs/

COPYRIGHT

       Copyright (C) 2002-2011 Twisted Matrix Laboratories.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       ssh(1), conch(1)

								   October 2002 							CKEYGEN(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

File transformation - what is most efficient method

Discussion started by: 1superdork

2. Shell Programming and Scripting

multiplying values from two text files

Discussion started by: crunchichichi

3. Shell Programming and Scripting

Extract text and store in separate files

Discussion started by: shoaibjameel123

4. Programming

modifying 2 or more values using method in Java

Discussion started by: upvan111