Sponsored Content
Top Forums Shell Programming and Scripting How to swap the values in array using for loop? Post 302984811 by Meeran Rizvi on Tuesday 1st of November 2016 04:25:34 AM
Old 11-01-2016
i am using bash shell v-4.2
i just need to rearrange the elements of my array & tell me how to print in reverse order
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to use array values after the loop.

- I m retreving values from database and wish to use those values later in my shell script. I m placing these values in an array da_data but outside loop array is empty.Problem is its treating array as local inside loop hence array is empty outside loop. Plz go through the script and suggest how... (1 Reply)
Discussion started by: Devesh5683
1 Replies

2. Shell Programming and Scripting

Assigning values to an array via for/while loop

I need to do something like this: for i in 1 2 3 4 5; do arr=$(awk 'NR="$i" { print $2 }' file_with_5_records) done That is, parse a file and assign values to an array in an ascending order relative to the number of record in the file that is being processed on each loop. Is my... (2 Replies)
Discussion started by: fiori_musicali
2 Replies

3. Shell Programming and Scripting

Store values in an Array

Hi all. Well, I have the next code: I need to make an array with the values I have in the bucle, but just don't get it... Question is, how can I store in an array that values, and how can I display them with echo? (8 Replies)
Discussion started by: crcbad
8 Replies

4. Shell Programming and Scripting

PHP: Search Multi-Dimensional(nested) array and export values of currenly worked on array.

Hi All, I'm writing a nagios check that will see if our ldap servers are in sync... I got the status data into a nested array, I would like to search key of each array and if "OK" is NOT present, echo other key=>values in the current array to a variable so...eg...let take the single array... (1 Reply)
Discussion started by: zeekblack
1 Replies

5. Shell Programming and Scripting

Array Variable being Assigned Values in Loop, But Gone when Loop Completes???

Hello All, Maybe I'm Missing something here but I have NOOO idea what the heck is going on with this....? I have a Variable that contains a PATTERN of what I'm considering "Illegal Characters". So what I'm doing is looping through a string containing some of these "Illegal Characters". Now... (5 Replies)
Discussion started by: mrm5102
5 Replies

6. Red Hat

Values in array are not able to be used one by one

hey,i stored the value of an sql query in an array and then tried to use that value in while loop. actually my array will have two or more values, then according to the values i have to display result. #!/bin/bash -xv val_1=$( sqlplus -s rte/rted1@rel75d1 << EOF set heading off select... (1 Reply)
Discussion started by: ramsavi
1 Replies

7. Shell Programming and Scripting

awk loop using array:wish to store array values from loop for use outside loop

Here's my code: awk -F '' 'NR==FNR { if (/time/ && $5>10) A=$2" "$3":"$4":"($5-01) else if (/time/ && $5<01) A=$2" "$3":"$4-01":"(59-$5) else if (/time/ && $5<=10) A=$2" "$3":"$4":0"($5-01) else if (/close/) { B=0 n1=n2; ... (2 Replies)
Discussion started by: klane
2 Replies

8. Shell Programming and Scripting

Unable to swap values

#!/bin/bash pwd1=`cat 1.ini | grep -w PWD | cut -d'=' -f2` //value is /home/java/Desktop/sh_h echo the value is `pwd` pwd2=`cat 2.ini | grep -w PWD | cut -d'=' -f2` //value is /home/unix/Desktop/sh_h echo the value is $pwd2 if ] then echo both are same else pwd2=$pwd /* here i want to... (6 Replies)
Discussion started by: anandpasunoori
6 Replies

9. Shell Programming and Scripting

Convert values in an array using a loop

I have a headerless array of 1000 columns x 100000 rows. The array only contains 4 values; 0/0, 0/1, 1/1, ./. Here I am showing the 1st 3 rows and columns of the input array 0/0 0/0 1/1 0/1 0/1 0/1 0/0 ./. 0/0 0/0 0/0 0/0 I would like to convert the values in... (9 Replies)
Discussion started by: Geneanalyst
9 Replies

10. Shell Programming and Scripting

Array not printing values if used in a loop

Hello! I'm making an English to Morse Code translator and I was able to mostly get it all working by looking through older posts here; however, I have one small problem. When I run it it's just printing spaces for where the characters should be. It runs the right amount of times, and if I try... (3 Replies)
Discussion started by: arcoleman10
3 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 09:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy