if and then statements

10 More Discussions You Might Find Interesting

1. Homework & Coursework Questions

Using While and If statements

1. The problem statement, all variables and given/known data: Two problems I need solving please. I created a script where the user types in 7 numbers as standard input and each one is then stored in an array. Now I need to perform the following calculations on those numbers: 1) Use a while...

2. Shell Programming and Scripting

Using While and If statements

Hi guys, Two problems I need solving please. I created a script where the user types in 7 numbers as standard input and each one is then stored in an array. Now I need to perform the following calculations on those numbers: 1) Use a while loop to determine the largest number in the range. ...

3. Shell Programming and Scripting

vi and if statements

Hi I am very new to Unix programming and shell scripting. I am trying t figure out how to write a little script that will output the number of directories. I can find the number of directories using ls -l | grep "^d" | wc -l I can not figure out how to do it so when I type the name...

4. Shell Programming and Scripting

Help with IF statements

I am writing a script that does a search for a argument in a file and lists all like occurrences. The script verifies that it is a file and then runs another script that list the lines. My problem is that I need the script to accept a file or a directory and then go to that directory check all...

5. Shell Programming and Scripting

If statements....

Good morning all! I want to know if Im interpreting this if statement below right. if(((1) || (0)) && (1)){ do stuff; } This is saying: if true piped into false, then true, then do stuff. Right? What does the && stand for? thanks in advance! ben

6. UNIX for Dummies Questions & Answers

Help with For Statements

Hi, I am trying to write a for statement that will allow for the ps, who, finger, and date commands to run. Can anyone help? I use Putty.

7. Shell Programming and Scripting

HELP!! if statements

I am kind of new in Unix and i have to make a menu. I want to put an if statement in the menu. you should enter the filename and it goes to that file. How do i do this?

8. UNIX for Advanced & Expert Users

if statements

This is for a program I have to do to calculate the day of the week. I need to write an if statement that will do the following: if day is 29 and year is odd, don't calculate dayif ( day == 29 && year == ??? )I know how to do it for the day but I don't know how to do it for the year.

9. Shell Programming and Scripting

Please help on IF statements.

I had different problem scenarios with IF statement. Can any expert please enlighten me on the difference with these scenarios. Thank you. 1st Scenario: testdate=`date +%Y%m` test=`cat /var/log/database0.$testdate*.log | grep "Errors found during processing" | tail -10` if then ...

10. UNIX for Dummies Questions & Answers

if statements

I am trying to change this : Albert Einstein 52 Peter Scott 22 Hilary Smith 48 Joan Bakewell 30 Catherine Maguire 26 into Albert Einstein Pass Peter Scott Fail Hilary Smith Pass Joan Bakewell Fail Catherine Maguire Fail I have to use a if statement that says: if field 3 is...

LEARN ABOUT OSF1

xgas

xgas(1X)																  xgas(1X)

NAME

       xgas - animated simulation of an ideal gas

SYNOPSIS

       xgas [-option...]

OPTIONS

       This  is  a  toolkit  program;  all the usual toolkit options are available.  Sets the autoStart resource.  Sets the timeStepSize resource.
       Sets the delay resource.  Sets the randomBounce resource.  Sets the equilibrium resource.  Sets the maxMolecules resource.  Sets the  fore-
       ground.	Sets the background.

DESCRIPTION

       xgas is a physical simulation of an ideal gas in a heated box. Gas molecules move around the box with velocities dependent on their temper-
       ature. A chamber consisting of two boxes contains the gas molecules; the temperature of each box  can  be  independently  controlled  by  a
       scrollbar.  When gas molecules collide with the walls, their temperature approaches that of the box.

       Use  mouse button 1 to create molecules one at a time at the cursor position.  Use mouse button 2 to create the maximum number of molecules
       at the cursor position.

RESOURCES

       The xgas program uses the following X resources: Starts the simulation automatically.  Good for canned demos.  Specifies the simulated time
       duration in microseconds for each cycle of computation.	Specifies the real time interval between timestep computations.  In each wall col-
       lision, a molecule bounces elastically (angle of incidence = angle of reflection). A component of randomness is added to this  angle.  Ran-
       domBounce  varies from 0.0 (no randomness) to 1.0 (completely random angle of incidence).  During each wall collision, a molecule's kinetic
       energy approaches that corresponding to the temperature of the wall. If equilibrium is 1.0, the molecule reaches the wall temperature imme-
       diately.  For values between 1.0 and 0.0, the molecule approaches the temperature of the wall more slowly.  Specifies the maximum number of
       molecules in the simulation.

BUGS

       When the chamber is resized, molecules should be rearranged appropriately.  Instead, the molecule arrays are reinitialized.

SEE ALSO

       X(1X), xwd(1X)

AUTHOR

       Larry Medwin

																	  xgas(1X)

UNIX for Dummies Questions & Answers