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• How to set a PHP session variable through linux command prompt?

  - by Sev

  How to set a PHP session variable through linux command prompt? Clarification So, as you know we can set session variables in PHP using $_SESSION global variable when coding. I would like to know if there is a way to set this variable through php command prompt? For example, in the code, if I can set $_SESSION['temp'] = "whatever" Is there a way to set the same variable through command prompt PHP?

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• How can I translate Linux keycodes from /dev/input/event* to ASCII in Perl?

  - by Bogdan Constantinescu

  I'm writing a Perl script that reads data from the infamous /dev/input/event* and I didn't find a way to translate the key codes generated by the kernel into ASCII. I'm talking about the linux key codes in this table here and I can't seem to find something that would help me translate them without hardcoding an array into the script. Am I missing something? I'd like to skip the array part because it doesn't seem to be a good practice, so any idea? :)

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• 'htdocs' folder in XAMPP for linux belongs to "nobody" after installing, why?

  - by user248959

  Hi, after installing XAMPP on linux i have seen the folder "htdocs" belongs to "nobody". Has this any intention? Do you think owning that folder is a good practice? Regards Javi

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• Linux: How to measure actual memory usage of an application or process?

  - by ksuralta

  Hi, How do you measure the memory usage of an application or process in Linux? I've read here that "ps" is not an accurate tool to use for this intent. Thanks, Kenneth

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• How to get relative path from two absolute paths in linux shell?

  - by Zebooka

  We have two paths. First one is directory, second either dir or file. /a/b/c and /a/d/e.txt Relative path from first path to second will be: ../../d/e.txt How to get it in linux terminal? PS: For those who ask "what is use case?" - creating lots of relative symlinks (just as an example)

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• How to programmatically get info about storage drives in linux? (C# MONO)

  - by DxCK

  I need programmatically get all storage drives available in a linux system with the following fields: Path File System (FAT32, NTFS, etc) Containing Physical Disk It need to support all common storage types: hard disks, Disk-On-Keys, CdRom, Dvd, etc. How to do this from C# to run well from MONO?

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• Determine what version of Mono is running on linux?

  - by emalamisura

  Is there a command line I can run to determine what version of Mono I am running on Linux? I am using Ubuntu and I it is command line only (no X Windows installed).

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• Does mprotect flush the instruction cache on ARM Linux?

  - by Adam Goode

  I am writing a JIT on ARM Linux that executes an instruction set that contains self-modifying code. The instruction set does not have any cache flush instructions (similar to x86 in that respect). If I write out some code to a page and then call mprotect on that page, is that sufficient to invalidate the instruction cache? Or do I also need to use the cacheflush syscall on those pages?

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• How to pass parameters to a Linux Bash script?

  - by chun

  I have a Linux bash script 'myshell'. I want it to read two dates as parameters, for example: myshell date1 date2. I am a Java programmer, but don't know how to write a script to get this done. The rest of the script is like this: sed "s/$date1/$date2/g" wlacd_stat.xml >tmp.xml mv tmp.xml wlacd_stat.xml

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• How to create an executable of a .c file in Linux ?

  - by neha soni

  How to create an executable out of a .c file in Linux? Do I have to use a Makefile? How are those created, named, and executed?

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• How to get "requests per second" for Apache in Linux?

  - by Daniel Silveira

  In Windows for ASP, you can get it perfmon, but... How to get "requests per second" for Apache in Linux?

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• File compare on ftp-server and in a folder in linux?

  - by alex

  Need solution for file compare on ftp-server and in local folder. Operating sytem - Linux Ubuntu. Thanks!

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• Ruby on rails user authentication using linux passwd file?

  - by kdt

  Hi, Is there an authentication plugin for rails which uses the host system's /etc/passwd file to provide user/password information? The goal is to provide user login to a rails app for the same users who already have local login accounts to the linux machine hosting the rails app. Cheers.

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• What is the best Linux distribution as a Xen host?

  - by St3fan

  I ordered a server for the home office and I would like to partition it with Xen. I think this will keep things clean and easier to maintain. I will be running things like MySQL, PostgreSQL, Tomcat and my own code on this machine. My question is: what freely available Linux distribution has the best Xen hosting facilities?

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• How can I get the current network interface throughput statistics on Linux/UNIX?

  - by DavidM

  Tools such as MRTG provide network throughput / bandwidth graphs for the current network utilisation on specific interfaces, such as eth0. How can I return that information at the command line on Linux/UNIX? Preferably this would be without installing anything other than what is available on the system as standard.

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• What are the testing method for a Linux filesystem?

  - by sasayins

  Hi, What are the testing methods for a Linux filesystem? Please provide example scenarios. I am wondering why my other questions were closed. I think it's a valid question.

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• What's the best way to get to know linux or BSD kernel internals?

  - by Michal Piaskowski

  I'd like to gain better knowledge of operating system internals. Process management, memory management, and stuff like that. I was thinking of learning by getting to know either linux or BSD kernel. Which one kernel is better for learning purposes? What's the best place to start? Can you recommend any good books?

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• What language choice is good for a c# developer wishing to develop on the Linux platform?

  - by JL

  Are there any good OOP languages that you can use on Linux? Obviously Java comes to mind, even running C# under mono. Looking for a language that can be used for all round development, web dev, desktop, services etc. Besides Mono C# and Java anything else come to mind?

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• How to allocate an executable page in a Linux kernel module?

  - by pts

  I'm writing a Linux kernel module, and I'd like to allocate an executable page. Plain kmalloc returns a pointer within a non-executable page, and I get a kernel panic when executing code there. It has to work on Ubuntu Karmic x86, 2.6.31-20-generic-pae.

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• what is the advantage of using Linux compared with Windows OS?

  - by learner

  Hi what is the advantage of using Linux server compared with Windows .. except secure and open source answer.

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• How do I output coloured text to a Linux terminal?

  - by Macha

  How do I print coloured characters to a Linux terminal that supports it? I'm using C++ for this program, but I think that might be irrelevant. EDIT: And secondly, how do I tell if it supports colour codes?

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• Can I run original MS.Net Framework 4 on Linux someway (with Wine perhaps)?

  - by Ivan

  I once heard of a guy managed to install original Microsoft .Net Framework on Linux and successfully run Mono-incompatible .Net applications using bleeding-edge MS C# features. Any idea how could he do it?

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• php application works on windows server but doesn't work on linux server,why?

  - by cubuzoa

  Hi, i have a php web application.This application works on windows server but doesn't work on linux server.I think this is about php.ini or file permissions.Whta can be other reasons for this situaion?What must be the basic php.ini configurations for this situation?Thanks for advance...

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• Way Cross Compile C/C++ code to run on Windows, Linux, and Mac OS?

  - by Mohit Deshpande

  Is there a way to take my C++ code and cross compile it to run on Windows, Mac OS, and Linux? Is there a tool to do this, or does it have to be manually compiled on each OS via Terminal/Cygwin?

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• How to enable fall-through directories in Linux, so if /path0/file doesn't exist, path1/file is used

  - by Hunter Loftis

  I'm seeking way to have linux fall-through on directories so that with this structure: /dir0/a.txt: "A" /dir0/b.txt: "B" /dir1/c.txt: "C" /dir1/b.txt: "BBB" dir1 falls back to dir0, leading to: cat dir1/a.txt: "A" cat dir1/b.txt: "BBB" cat dir1/c.txt: "C"

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