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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /1088/CH23/EX23.12/Result12.txt | |
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initial commit / add all books
Diffstat (limited to '1088/CH23/EX23.12/Result12.txt')
| -rwxr-xr-x | 1088/CH23/EX23.12/Result12.txt | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/1088/CH23/EX23.12/Result12.txt b/1088/CH23/EX23.12/Result12.txt new file mode 100755 index 000000000..42e4229e4 --- /dev/null +++ b/1088/CH23/EX23.12/Result12.txt @@ -0,0 +1,93 @@ + ans =
+
+ 1.
+
+-->exec('Example12.sci')
+
+-->clear
+
+-->flag=1
+ flag =
+
+ 1.
+
+-->mode(-1)
+Current date is 23-Jun-2013
+
+Welcome to the Textbook Companionship Project 2013
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Book Title : UNIX CONCEPTS AND APPLICATIONS
+
+ Book Edition : 4
+
+ Book Author : Sumitabha Das
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Code Author : Pranav Bhat T
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+
+ Chapter Number : 23
+
+ Chapter Title : Systems programming I- Files
++-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+Example 12 : Show the file access rights of a file using the read UID and GID
+
+ ****************************************************************
+
+ Answer :
+
+ INSTRUCTIONS :
+
+ 1.These programs are part of systems programming in Unix and the commands have NO EQUIVALENT IN SCILAB
+
+ 2.However if possible some selected programmes have been TRIED TO BE IMPLEMENTED
+
+ 3.For most of the programmes whose equivalent is NOT THERE IN SCILAB,only the output has been printed as given in the textbook w
+ ith no interactive input as in the programme below
+
+ 4.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
+
+ 5.The inconvenience is regretted.
+.............Press [ENTER] to continue..... UNIX SHELL SIMULATOR(DEMO VERSION WITH PRELOADED COMMANDS)
+
+
+
+
+$ cat faccess.c # to open the file emp.lst /*Program: faccess.c -- Determines a file's access rigths using read UID and GID */
+#include <stdio.h>
+#include <unistd.h>
+
+void quit(char *,int);
+int main(int argc, char *argv[]) {
+ short count;
+ for (count = 1; count < argc ;++count) {
+ printf("%s ",argv[count]);
+
+ if (access(argv[count],F_OK) == -1)
+ quit("File not found",1);
+ if (access(argv[count],R_OK) == -1)
+ printf("Not readable ");
+ if (access(argv[count],W_OK) == -1)
+ printf("Not writable ");
+ if (access(argv[count],X_OK) == -1)
+ printf("Not executable ");
+
+ printf("\n");
+ }
+ exit(0);
+}
+ $ cc faccess.c $ a.out /etc/passwd /etc/shadow /etc/passwd: Not writable Not executable
+/etc/shadow: Not readable Not writable Not executable
+
+
+
+
+$ 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)
|