Sponsored Content
Full Discussion: Arrays & File Reading
Top Forums Shell Programming and Scripting Arrays & File Reading Post 302151859 by fpmurphy on Monday 17th of December 2007 08:15:59 PM
Old 12-17-2007
I assume you are using the bash shell from the use of declare statement.

Answer to first question:
Code:
LINEFOUR=($(sed -n '4p' $FILE))

Answer to second question:
Code:
LFCOUNT=${#LINEFOUR[*]}


Last edited by fpmurphy; 12-17-2007 at 09:29 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Reading value from one file & using it for 2nd file

In File A I have 1st col as numbers. Using these numbers, I need to find out the rows at this numbered index in other file. I know loose commands. To get the 1st col from file A : awk '{print $1}' fileA To get the row at the index, say 100 - from file B : sed '100p' fileB After... (7 Replies)
Discussion started by: videsh77
7 Replies

2. Shell Programming and Scripting

Reading in data sets into arrays from an input file.

Hye all, I would like some help with reading in a file in which the data is seperated by commas. for instance: input.dat: 1,2,34,/test for the above case, the fn. will store the values into an array -> data as follows: data = 1 data = 2 data = 34 data = /test I am trying to write... (5 Replies)
Discussion started by: sidamin810
5 Replies

3. Shell Programming and Scripting

Test File Reading & Validation using Shell script

Please help develop script for below requirement -------Sample file------------------------------- HSVSHOSTRECON 20090115011817BP DARMAR60064966247003504720000000000000000000066626000000000000133000003D003463001332 ... (14 Replies)
Discussion started by: niraj_bhatt
14 Replies

4. Shell Programming and Scripting

KSH: Reading a file line by line into multiple arrays

Hi - I have a file that contains data in this format:- #comment value1 value2 value3 #comment value4 value5 value6 value7 #comment value8 value9 I need to read value1, value2 and value3 into one array, value4 value5 value6 and value7 into another array and value8 and value9 into a 3rd... (2 Replies)
Discussion started by: sniper57
2 Replies

5. Shell Programming and Scripting

PHP read large string & split in multidimensional arrays & assign fieldnames & write into MYSQL

Hi, I hope the title does not scare people to look into this thread but it describes roughly what I'm trying to do. I need a solution in PHP. I'm a programming beginner, so it might be that the approach to solve this, might be easier to solve with an other approach of someone else, so if you... (0 Replies)
Discussion started by: lowmaster
0 Replies

6. Shell Programming and Scripting

Reading a .dat file in to 2 different arrays

hi all, i have a data file that contains 2 columns, names and numbers. i need to read names in to a an array call names and numbers in to an array call numbers. i also have # and blank lines in my dat file and i need to skip those when i read the dat file. how do i do this? btw, my column 1 and... (3 Replies)
Discussion started by: usustarr
3 Replies

7. Shell Programming and Scripting

Search & Replace in Multiple Files by reading a input file

Hi, I have a folder which contains multiple config.xml files and one input file, Please see the below format. Config Files format looks like :- Code: <application name="SAMPLE-ARCHIVE"> <NVPairs name="Global Variables"> <NameValuePair> ... (0 Replies)
Discussion started by: haiksuresh
0 Replies

8. UNIX for Dummies Questions & Answers

Reading the dates from a file & moving the files from a directory

Hi All, I am coding for a requirement where I need to read a file & get the values of SUB_DATE. Once the dates are found, i need to move the files based on these dates from one directory to another. ie, this is how it will be in the file, SUB_DATE = 20120608,20120607,20120606,20120606... (5 Replies)
Discussion started by: dsfreddie
5 Replies

9. Shell Programming and Scripting

Search & Replace in Multiple Files by reading a input file

I have a environment property file which contains: Input file: value1 = url1 value2 = url2 value3 = url3 and so on. I need to search all *.xml files under directory for value1 and replace it with url1. Same thing I have to do for all values mentioned in input file. I need script in unix bash... (7 Replies)
Discussion started by: Shamkamde
7 Replies

10. Shell Programming and Scripting

Reading columns using arrays

Hello, Please help in how to read rows and columns using array and print them. I have below output and i want to store this in array and print the required rows or columns. aaaaaaa 123 bbbbbb 456 ccccccc 888 Use code tags, thanks. (1 Reply)
Discussion started by: Cva2568
1 Replies
ppmtosixel(1)                                                 General Commands Manual                                                ppmtosixel(1)

NAME
ppmtosixel - convert a portable pixmap into DEC sixel format SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC LJ250 color inkjet printer. If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file. OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com- pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni- tude larger than a compressed file and prints much slower. -margin If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci- fied, a 1.5 inch left margin will offset the image. PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?. BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation. SEE ALSO
ppm(5) AUTHOR
Copyright (C) 1991 by Rick Vinci. 26 April 1991 ppmtosixel(1)
All times are GMT -4. The time now is 11:27 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy