1. UNIX for Dummies Questions & Answers

Hi, I am becoming very curious as to why viruses attach only Windows system and not any UNIX and Linux. Does that has to do something with the architecture or something else. (11 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. 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)

5. Shell Programming and Scripting

Hi, In the following perl code: #!/usr/bin/perl -w if (open(FILE, "< in_file")) { while (<FILE>) { chomp($_); if ($_ =~ /patt$/) { my $f = (split(" ", $_)); print "$f\n"; } } close FILE; } Why changing the "FILE" as... (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. Shell Programming and Scripting

Hi Experts, I am trying to get system output to capture inside awk , but not working: Please advise if this is possible : I am trying something like this but not working, the output is coming wrong: echo "" | awk '{d=system ("date") ; print "Current date is:" , d }' Thanks, (5 Replies)

8. Shell Programming and Scripting

Hello, Although I have found similar questions, I could not find advice that could help with our problem. The issue: We have a few thousands text files (books). Each book has many chapters. Each chapter is identified by a cite-key. We need to split each of those book files by... (4 Replies)

9. Shell Programming and Scripting

I'd like to take the output of `pwsafe --exportdb > database.txt` and convert it to a KeePassX XML friendly format (feature request in pwsafe). I found flat file converter but the syntax is beyond me with this example. Solutions are welcomed. More details Here is the pwsafe --> KeePassX XML... (2 Replies)

10. 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)