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ans =
1.
-->exec('Example1.sci')
-->clear
-->flag=1
flag =
1.
-->mode(-1)
Current date is 23-Jun-2013
Welcome to the Textbook Companionship Project 2013
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Book Title : UNIX CONCEPTS AND APPLICATIONS
Book Edition : 4
Book Author : Sumitabha Das
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Code Author : Pranav Bhat T
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Chapter Number : 24
Chapter Title : Systems programming II- Process Control
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Example 1 : Show the method of showing all the type of process IDs
****************************************************************
Answer :
INSTRUCTIONS :
1.These programs are part of systems programming PURELY in Unix and the commands have NO EQUIVALENT IN SCILAB
2.However the .c files which are displayed here are also made into a seperate file.If you are a unix user then try compiling and
running the programme with gcc or cc compiler
3.The outputs displayed here are just MOCK OUTPUTS which are DISPLAYED IN THE TEXTBOOK
4.The inconvenience is regretted.
.............Press [ENTER] to continue..... UNIX SHELL SIMULATOR(DEMO VERSION WITH PRELOADED COMMANDS)
$ cat process.c # to open the file emp.lst /* Program: process.c -- Lists process and user credentials The PID, PPID, real and effective UIDs and GIDs */
#include <stdio.h>
int main(void) {
printf("PID : %4d,PPDI : %4d\n",getpid(),getppid());
printf("UID : %4d, GID : %4d\n",getuid(),getgid());
printf("EUID : %4d,EGID : %4d\n",geteuid(),getegid());
exit(0);
}
$ cc process.c $ a.out PID : 1035, PPID: 1028
UID : 102, GID: 10
EUID: 102, EGID: 10
$ exit #To exit the current simulation terminal and return to Scilab console
........# (hit [ENTER] for result)
BACK TO SCILAB CONSOLE...
Loading initial environment
-->diary(0)
|
