Sponsored Content
Full Discussion: Beginner: script headache
Top Forums Shell Programming and Scripting Beginner: script headache Post 302983309 by wisecracker on Monday 10th of October 2016 04:42:09 AM
Old 10-10-2016
As an addendum you are using #!/bin/sh
This is a POSIX compatible version of it...
Code:
#!/usr/local/bin/dash
# * !/bin/sh *
a=$1
b=$2

if [ "$a" = "A" ] || [ "$a" = "a" ] && [ "$b" = "B" ] || [ "$b" = "b" ]
then
        echo "Conditions are met."
else
        echo "Conditions are not met."
fi

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Shell Script for Beginner

I have a folder with lots of file. e.g. a.txt, b.txt, c.txt.... I want to put these files from the source directory and place them in a destination directory in a specific order, such as /destination/a/a.txt, /destination/b/b.txt, /destination/c/c.txt, ...... Please help. Thx :confused: (3 Replies)
Discussion started by: aaron_fong
3 Replies

2. Shell Programming and Scripting

Beginner needs help with script

I would like to get a sample script (ksh or bash, or both so I could see the differences) What I want to do with the script is send an daily email to myself that contains the following: The number of files in a directory The total size of the files in that directory The contents of a file... (2 Replies)
Discussion started by: martyb555
2 Replies

3. Shell Programming and Scripting

What's wrong here? (Beginner's script)

Hi Folks, New member here. I have been using UNIX systems for the past ~4 years (Linux, AIX, HP-UX, mostly) but have never had the need to write a script for myself. Now, things have changed and I'm in a bit of a pickle. I have, what looks to me like a syntactically correct script that's not... (2 Replies)
Discussion started by: pallak7
2 Replies

4. Shell Programming and Scripting

Need help with (beginner?) script

I am in an intro to unix/linux course, and need some help with a project. We are tasked with creating a basic script to automate a task that an Admin might need to do. We submitted ideas and mine was to have the system keep a record of log in and log out times for users. I thought this was going... (3 Replies)
Discussion started by: DethbyNo
3 Replies

5. Shell Programming and Scripting

Beginner shell script help

. ./testFile.sh url=http://ichart.finance.yahoo.com/table.csv?s= suf=&d=5&e=9&f=2009&g=d&a=1&b=4&c=1999&ignore=.csv wget $url$s1$suf; sleep 10; cat header.txt > $s1.txt; chmod 777 $s1.txt; sed '1d' table.csv?s\=$s1 >> $s1.txt; rm -Rf table* Very new at shell scripting as you can see... (3 Replies)
Discussion started by: harte
3 Replies

6. Shell Programming and Scripting

Debugging a beginner shell script...

I have been following a tutorial on bash which has proven to be very helpful. However, i am stuck with a command not found issue when asking for a y/n response from the user. Below is the part of code I believe is giving me grief... I have been trying to work through this for 3 hours now.... Please... (5 Replies)
Discussion started by: brokepunk
5 Replies

7. Shell Programming and Scripting

Shell script (beginner) need help...

Hello, I'm new to Sheel script and I need your help for a script I need to develop (for me). Indead, I have a software which log all entry from internet and save it in text file. But, the log is practically unreadable because every 256 characters jump to a new line (even if the message is... (5 Replies)
Discussion started by: acidoangel
5 Replies

8. Homework & Coursework Questions

Shell-script loops beginner

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: "Create a shell script that changes the selected word to another word in all files from selected archive. The... (1 Reply)
Discussion started by: oibanuelos
1 Replies

9. Homework & Coursework Questions

Shell Script (beginner)

1. The problem statement, all variables and given/known data: Arguments: http://farm9.staticflickr.com/8070/8212131370_8b6e8c10c5_c.jpg I am given these three arguments. $1, $2, $3 The first argument is the path to a directory. So, how would I go into the directory and compare files? I... (5 Replies)
Discussion started by: spider-man
5 Replies

10. UNIX for Dummies Questions & Answers

Beginner needs help with first script

Hi, so I have been doing ok making a relatively simple script just processing some data. However I am now at the point where im struggling to find the specific help I need. I have files in the form of yyyy.ddd.hh.mm.ss.stationnumber.component (they are earthquake events). eg.... (12 Replies)
Discussion started by: neneman3000
12 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 08:25 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy