Sponsored Content
Top Forums Shell Programming and Scripting Multiple If statements in bash problem Post 302565488 by Ophiuchus on Tuesday 18th of October 2011 04:25:44 AM
Old 10-18-2011
Quote:
Originally Posted by itkamaraj
else if should be elif
Thanks itkamaraj,

Even when I had some other errors, that's was the main problem.

The correct syntax as I want is:
Code:
X=17
if (( "$X" <= 5 )); then
    echo "The value is between 1 and 5"
    for ((i=1;i<=${X};i++)); do
     echo $i
    done 
elif (( "$X" > 5 )) && (( "$X" <= 10 )); then
    echo "The value is between 6 and 10"
    for ((i=1;i<=${X};i++)); do
     echo $i
    done 
elif (( "$X" > 10 &&  "$X" <= 20 )); then
    echo "The value is between 10 and 20"
    for ((i=1;i<=${X};i++)); do
     echo $i
    done 
fi

Thanks again to all for your help.

Regards
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

multiple conditions in if statements

Hi all, I'm confused about the proper syntax for multi-conditional if then statements. I'm trying to set limitations on info input on the command line.. i.e. if ] ;then $x=$vr1 else print "You have entered an invalid option." Can someone please clue me in on what is wrong with my syntax;... (3 Replies)
Discussion started by: tim mauger
3 Replies

2. Shell Programming and Scripting

Errors in bash with if statements

Hello everyone, I got this type of error when programming in bash new.bat: 16: cannot create : Directory nonexistent $bool new.bat: 37: Syntax error: "then" unexpected (expecting "fi") Does anyone know why? Here is my code #!bin/bash #function helps(){... (4 Replies)
Discussion started by: bbbash
4 Replies

3. Shell Programming and Scripting

How do I execute multiple statements within If then else

Please help me. I have been doing this for several hours. Here is the code if then echo a b c d >> file.txt echo 1111 >> file.txt fi The reason I want the two echo is because I want these statements printed on multiple lines. I keep getting error . First it tells me... (2 Replies)
Discussion started by: asemota
2 Replies

4. Shell Programming and Scripting

Running multiple if statements

Hi, Hav automated a process, and it is working fine. for first process alone status = ` ps -ef |grep a ` if then echo " Success" > temp/logfile else echo " Failure" > temp/logfile fi Now I hav to write script to automated some 2 process and then send mail using cron.. ... (5 Replies)
Discussion started by: NehaKrish
5 Replies

5. Shell Programming and Scripting

Multiple if Statements

Hi All, I need to check for 3 conditions and if all the 3 are not satified need to say that services are not running.... is the below code correct. #********** Check to see if Service 1 is still running************** if then echo "$datetimestamp: Service1 is not running" >>... (4 Replies)
Discussion started by: ch33ry
4 Replies

6. Shell Programming and Scripting

Multiple while statements?

I'm working on a script for class as a final project. We have to ask for values (city, state, zip) five times, but the state can only be MI, IN, IL, or OH. I'm trying to do this with a while loop inside of a while loop, but I have no idea how to do it properly. Here's what I have so far: ... (3 Replies)
Discussion started by: nickzourdos
3 Replies

7. Shell Programming and Scripting

Bash if statements in one line

I have the following bash code, and wondering if it is possible (and a good idea) to write the if statements in one line. # Run raytrac on the sound speed model. if ; then $bashPath/raytrac.bash -fcmd=$fcmd.cmd fi # Plot the travel times and ray paths. if ; then ... (8 Replies)
Discussion started by: kristinu
8 Replies

8. UNIX for Dummies Questions & Answers

Problem with multiple grep in bash loop

Hello, I am trying to create a matrix of 0's and 1's depending on whether a gene and sample name are found in the same line in a file called results.txt. An example of the results.txt file is (tab-delimited): Sample1 Gene1 ## Gene2 ## Sample2 Gene2 ## Gene 4 ## Sample3 Gene3 ... (2 Replies)
Discussion started by: InfoSeeker2
2 Replies

9. UNIX for Dummies Questions & Answers

Multiple if statements

exmaple: file1 and file2 has 1 bit if then exit else send out email fi if then exit else send out email fi it exits the 1st if. did not continue with my 2nd if. thanks in advanced. Please use CODE tags are suggested on every page when you post an item in... (7 Replies)
Discussion started by: lawsongeek
7 Replies

10. Shell Programming and Scripting

Using multiple 'for' statements

Hello, I am new to scripting and I am trying to write a simple script that creates users and adds their passwords from two files; one a user list file and another a password list file. For example, I have two files already. $ cat file1 andy stephane aby paul $ cat file2 123 234... (4 Replies)
Discussion started by: FemoTheDon
4 Replies
ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME
ppmtopgm - convert a portable pixmap into a portable graymap SYNOPSIS
ppmtopgm [ppmfile] DESCRIPTION
Reads a portable pixmap as input. Produces a portable graymap as output. The output is a "black and white" rendering of the original image, as in a black and white photograph. The quantization formula used is .299 r + .587 g + .114 b. Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any ppm program can read pgm (and pbm ) files automatically. pgmtoppm is for colorizing a pgm file. Also, see ppmtorgb3 for a different way of converting color to gray. And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate the original colors, not necessarily a way that looks like a black and white photograph. QUOTE
Cold-hearted orb that rules the night Removes the colors from our sight Red is gray, and yellow white But we decide which is right And which is a quantization error. SEE ALSO
pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5) AUTHOR
Copyright (C) 1989 by Jef Poskanzer. 10 April 2000 ppmtopgm(1)
All times are GMT -4. The time now is 09:13 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy