Need help on how to execute several programs Post: 303024960

Sponsored Content

Homework and Emergencies Homework & Coursework Questions Need help on how to execute several programs Post 303024960 by RudiC on Sunday 21st of October 2018 10:31:10 AM

10-21-2018

Registered User

No problem with you "have very little experience with Unix.", but I'd be very surprised if the teacher / tutor / professor hadn't given you any hints in their lesson on how to execute a program or script. It's the same way as on many other OS, btw., e.g. MSDOS or windows.

Next to the lessons, the *nix man pages are an invaluable source of information. Look into your shell's man page for "positional parameters". You seem to use two different shells, obviuously, sh and csh, with (partly, admitted) incompatible syntax. So, what works error free in one doesn't necessarily in the other. Is that intended?

So, with the error message please also post the shell emitting it.
And, please be meticulous when programming AND posting - one space too many may lead to synatx errors there and misinterpretations here. E.g. do you have if ( $#argv==0 ) then as in post#3, or if($#argv==0) then as in post#1?

You may want to set the --xtrace (-x) shell option when running your script; this might give you (and us) some more insight on what's going on and wrong.

RudiC

View Public Profile for RudiC

Find all posts by RudiC

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Where did my programs go?

I notice that (Mandrake) Linux and Windows do not seem to operate alike in terms of installing third party software. Windows, on one hand, creates icons and adds items to the Start Menu, with the help of the InstallShield--or equivalent, of course, but Linux, on the other hand, seems to care...

2. Linux

Linux-programs

I have installed Red Hat Linux 9.0 recently on my computer. Im wondering if there are any good sites for downloading linux programs besides the site of Red Hat. Thank you in advance!:D

3. Shell Programming and Scripting

shell programs

how to write pipe for finding out the login names and login time of the users whose login name begins with p.

4. Shell Programming and Scripting

help to execute programs in sequence through batch

I need help to create batch file . I want to run some programs in sequence in batch mode . I have one file which contains the name of program and command The test.bat file contain this data stsrun -v devel area1.exp stsrun -v devel prime1.exp stsrun -v devel treat.exp Please help...

5. Shell Programming and Scripting

Need to execute 2 scripts, wait, execute 2 more wait, till end of file

:cool: I need to execute a shell script to do the following: cat a file run two back ground processes using the first two values from the file wait till those background processes finish run two more background processes using the next two values from the file wait till those background...

6. AIX

Execute "telinit q" while programs are running ?

Hi, I want to make changes to inittab file and reread it using "telinit q" to make changes effective immediately. Is it safe to do that while important apps are running ? thanks Vilius

7. UNIX for Dummies Questions & Answers

Are programs like sys_open( ) ,sys_read( ) et al examples of system level programs ?

Are the programs written on schedulers ,thread library , process management, memory management, et al called systems programs ? How are they different from the programs that implement functions like open() , printf() , scanf() , read() .. they have a prefix sys_open, sys_close, sys_read etc , right...

8. Shell Programming and Scripting

Automatically execute all programs in a directory

Hello. The last days I extended an open-source C++ library by some faster functions. This library provides a lot of short test programs which guarantee that the library works exactly. The compilation of each test works in a Makefile automatically. What I need is a shell script which...

9. UNIX for Advanced & Expert Users

Check programs used most

How can you check the programs that you use most often?

10. UNIX for Dummies Questions & Answers

Difference between inbuilt suid programs and user defined root suid programs under bash shell?

Hey guys, Suppose i run passwd via bash shell. It is a suid program, which temporarily runs as root(owner) and modifies the user entries. However, when i write a C file and give 4755 permission and root ownership to the 'a.out' file , it doesn't run as root in bash shell. I verified this by...

LEARN ABOUT REDHAT

elks

elksemu(1)						      General Commands Manual							elksemu(1)

NAME

       elksemu - Embedded Linux Kernel Subset emulator

SYNOPSIS

       /lib/elksemu program [arguments]

DESCRIPTION

       Elksemu is a program that allows 8086 ELKS programs to be run under Linux-i386. These programs can be compiled using the bcc(1) C compiler.

       It  is not usual to invoke /lib/elksemu directly, either the simple patch or kernel module distributed with it will cause the kernel to run
       /lib/elksemu with the correct arguments whenever the user tries to execute an ELKS executable directly.

OPTIONS

       There are no flag options to elksemu, the first argument is the name of the program to run the rest are arguments that are  passed  to  the
       Elks program.

       The  elksemu  program is normally installed suid-root and in this event it is able to run execute only (chmod 111) elks executables and act
       correctly on the suid permission bits on those executable. This may be considered a  security  hazard  so  elksemu  does  not  have  to	be
       installed suid-root.

SEE ALSO

       bcc(1), as86(1), ld86(1)

BUGS

       Elksemu is incomplete.

       The program may still have security bugs!

								     Jan, 1997								elksemu(1)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Where did my programs go?

Discussion started by: helvetica

2. Linux

Linux-programs

Discussion started by: SolidSnake

3. Shell Programming and Scripting

shell programs

Discussion started by: rameshparsa

4. Shell Programming and Scripting

help to execute programs in sequence through batch

Discussion started by: getdpg