how would you ensure that all ordinary files created by you have rw-rw---- as default persmissions?...
Homework Answers
To check the default permission, we can use umask command in terminal. usmak (means user mask), is responsible for giving permissions to newly created files.
To check your default umask, do following steps:
1. Launch terminal
2. Type umask
3. Hit Enter.
If you see 0002 as output on the terminal, it means all new files are set with 664 permission (i.e. rw-rw----)
How umask code works:
rwx-rwx-rwx permission is known as 777 which gives read, write and execute access to all users
rw-rw-rw is known as 666 which gives only read and write access to all users.
r: read
w: write
x: execute
If you want to give rw-rw---- permission, it is chmod 664, so 666-664 = 002.
So if you have umask 0002 (ignore first 0), your creating new files with rw-rw---- permission.
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this is the code you should use from already existing shell i created . Just gothrough...
this is the code you should use from already existing shell i
created .
Just gothrough the programand execute that command.and execute
in linux. It takes the command from the user and execute.
#include<stdio.h>i
#include<stdlib.h>
#include<string.h>
int main()
{
//cmd1 is the ,hr variable which holds the commands
char cmd1[10];
printf("Enter the command without options like ls or date");
scanf("%s",&cmd1);
printf("%s\n",cmd1);
//system function is used for to run the unix commad, it use
system(cmd1);
return 0;
}
#include<stdlib.h>
int main()...
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this is the code you should use from already existing shell i
created .
Just gothrough the programand execute that command.and execute
in linux. It takes the command from the user and execute.
#include<stdio.h>i
#include<stdlib.h>
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{
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printf("Enter the command without options like ls or date");
scanf("%s",&cmd1);
printf("%s\n",cmd1);
//system function is used for to run the unix commad, it use
system(cmd1);
return 0;
}
#include<stdlib.h>
int main()...
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