Hi, i have regularly worked with single threaded programs. i never saw a multithreded program crashing since i havent worked on any. is there any difference between both the core dumps? is there any additional information provided in the core dump of a multithreaded program when compared to a single threaded program? ...
What is the difference between the following two commands, when run on AIX? /bin/sh 'ls -l -R' /bin/sh -c 'ls -l -R' ...
I do not want: $ cat file > dummy; $ cat header dummy > file I want similar to the command below but to the beginning, not to the end: $ cat header >> file ...
Is it possible to Export a MySQL to a CSV using the command line in UNIX? ...
My friend says that Django only has 1 thread or something? And I have to edit my 000-default in order to add more processes? He suggests 4 or 5. What exactly is this, and what do I have to do? Thanks, I'm a noob. ...
My final goal is to write the program which can run on the Unix OS. I know that there are many Unix versions, and don't know exactly for now which one I need to support. I cannot install any Unix OS right now. The only thing I can do is to use free OS which is close to Unix as much as possible. Is FreeBSD a good choice for this? I know t...
Alias /media/ /home/matt/repos/hello/media <Directory /home/matt/repos/hello/media> Options -Indexes Order deny,allow Allow from all </Directory> WSGIScriptAlias / /home/matt/repos/hello/wsgi/django.wsgi /media is my directory. When I go to mydomain.com/media/, it says 403 Forbidden. And, the rest of my site doesn't work because all st...
Hello folks. (not sure if this question belongs here or to superuser) I'd like to know if there is any way to determine a terminal's background color ? In my case, using gnome-terminal. It might matter, since it's entirety up to the terminal application to draw the background of its windows, which may even be something else than a plai...
What I'm planning to do is a) parse a file for some lines matching a regular expression b) store the match in some sort of database / file so I don't have to do the parsing again and again c) call another program passing the matches as arguments While I can imagine how to do a) and c), I'm a little bit unsure about b). The matches are o...
Hey all, the following is a snippet of code taken from the unix ptx utility. I'm attempting to maximize code coverage on this utility, but I am unable to reach the indicated portion of code. Admittedly, I'm not as strong in my C skills as I used to be. The portion of code is indicated with comments, but it is towards the bottom of the bl...
Hi all, I have been a C++ / Linux Developer till now and I am adept in this stack. Of late I have been getting opportunities that require Perl, Unix (with knowledge of C++,shell scripting) expertise. Organizations are showing interest even though I don't have much scripting experience to boast off. The role is more in a Support, mainten...
I have a signal that blocks SIGINT and basically says "Sorry, you can't quit.\n" The issue is this can occur during a scanf. When this occurs during a scanf, scanf takes in the printf as input. How can I do a printf that will cause scanf to basically hit the enter key automatically. I don't care that I am getting bad input. I just wan...
Hi, i was just checking the behaviour of fork system call and i found it very confusing. i saw in a website that Unix will make an exact copy of the parent's address space and give it to the child. Therefore, the parent and child processes have separate address spaces #include <stdio.h> #include <sys/types.h> int main(void) { pid_t ...
Hai every one. How can I make the changes in the aumix permanently? I am running the aumix application using the following command thinapplaunch aumix. I am increasing the volume manually. I saved and quit. I am again launching that application using the same command. thinapplaunch aumix Now all the changes ...
Hi, I've set it in htaccess so it won't display the contents of directories, rather it will just show the usual Forbidden page. how can i either: show a certain page or redirect to a certain page rather than just this default "Forbidden" page? thanks ...
Is there any Carbon/Cocoa/C API available on Macs that I can use to enumerate processes? I'm looking for something like EnumProcesses on Windows. My goal is to check from code whether a process is running (by name). Thanks! ...
Here's my code that is not working: print "To: "; my $to=<>; chomp $to; print "From: "; my $from=<>; chomp $from; print "Attach: "; my $attach=<>; chomp $attach; print "Subject: "; my $subject=<>; chomp $subject; print "Message: "; my $message=<>; chomp $message; my $mail_fh = \*MAIL; open $mail_fh, "uuencode $attach $attach |mailx...
From the wrapper shell scripts i am calling the Java program. I want the Unix shell script to pass all the arguments to java program except the EMAIL argument. HOW Can i remove the EMAIL argument and pass the rest of the arguments to the java program. EMAIL argument can come at any position. valArgs() { until [ $# -eq 0 ]; do ...
dyld: Library not loaded: /opt/local/lib/libncursesw.5.dylib Referenced from: /opt/local/bin/clear Reason: image not found Trace/BPT trap ...
I'm working on a network-related project and I am using DTLS (TLS/UDP) to secure communications. Reading the specifications for DTLS, I've noted that DTLS requires the DF flag (Don't Fragment) to be set. On my local network if I try to send a message bigger than 1500 bytes, nothing is sent. That makes perfect sense. On Windows the send...