1. Shell Programming and Scripting

i posted a reply the other day and needed an answer to this question while i was clarifyiing a few matter.. "how to compare to date variable in string format without having to compare word for word".. my reply was to try to use awk to compare the strings.. I wasn't quite sure if i remembered how... (2 Replies)

2. UNIX for Dummies Questions & Answers

I have three computers A, B and C. To login to B and C I should use A because it has a SSH key. I don't have any other way of accessing these two computers. Now, if I need to transfer a file between B and C, I am unable to find a way that would work... because I don't know how to authenticate... (1 Reply)

3. Programming

Hi, I am trying to reverse a string using the following program utilizing the Exclusive OR bit operation: int main() { char str = "Quraish"; char *p = str, temp; char *q = str + strlen(str) - 1; while ( p != q ) { if (*p != *q) { *p ^= *q; *q ^= *p; *p ^= *q;... (1 Reply)

4. UNIX for Dummies Questions & Answers

Hi Gurus, I am new to UNIX environment. We have our DataStage tool installed on UNIX box.We have Dev,test and Prod environments.The architecrue is as given below. Now my problem is I am not able to know what is meant by Physical name,Logical name,Cluster etc. also we need to do failover in case a... (5 Replies)

5. Shell Programming and Scripting

Hi, What is the difference in the following two awk one-liners? awk -F, '{s++} END {if (s == 1 && $4 > "09:10:00") {print $2, $4}}' f1 awk -F, '{s++} s == 1 && $4 > "09:10:00" {print $2, $4}' f1 Even though, all the 2nd column values have duplicate records, the first code does not give any... (4 Replies)

6. Programming

Hi, In the below C code, #include <stdio.h> void print() { printf("Hello\n"); } int main() { void (*f)() = (void (*)()) print; f(); (*f)(); } I wonder, how the syntaxes "f()" and "(*f)()" are treated as same without any error? Is this an improvement or ANSI/ISO... (1 Reply)

7. UNIX for Dummies Questions & Answers

I want to know the memory capacity and types of memories, processor and more... What kind of aplications this OS attends? Archicture/system classification (Hybrid, monolithic, multitasking, micro-kernel, layered, Another..? Explain it to me... I really need to understand and know that. Any... (3 Replies)

8. What is on Your Mind?

I have added a new experimental "Computer Science and Mathematics Trivia - True or False" section in the discussions, currently under the tags box. In the future, I plan to Expand this feature to add more trivia categories from math, science and technology. Keep track of correct and... (20 Replies)