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Questions tagged [reference]

Resources, online or offline, that contain information relevant to specific subjects or would provide context for understanding Unix and GNU/Linux.

65
votes
6answers
4k views

Resources for portable shell programming

What resources exist for portable shell programming? The ultimate answer is to test on all targeted platforms, but that's rarely practical. The POSIX / Single UNIX specification is a start, but it ...
40
votes
4answers
4k views

Is there a tool/website to compare package status in different Linux distributions?

I am currently looking for a website or a tool that would allow me to compare the package state of a particular software in different Linux distributions. For instance, which version of gimp is ...
32
votes
4answers
29k views

/etc/hosts file refer to another configuration file

How can I get the /etc/hosts file to refer to another configuration file for it's list of hosts? Example /etc/hosts: ## My Hosts 127.0.0.1 localhost 255.255.255.255 broadcasthost #Other ...
30
votes
5answers
21k views

Best resources to learn bash scripting? [closed]

I've programmed in a number of languages for two years now, I mean that I know how to design and implement a decent solution for a given problem. However, bash is being a major headache to me, just ...
5
votes
3answers
339 views

Is there any documentation for udev builtins?

The man page for udev mentions in several places that certain rules options can be used to invoke 'builtin' commands, which are apparently built in to the udev program itself. However, I haven't been ...
4
votes
6answers
2k views

How do I find a command if I don't know its name?

As a Unix beginner, I often find myself wanting to know the name of the command that achieves a particular function I'm after. How can I go about finding out the name of the command, given a ...
3
votes
1answer
439 views

Unix dictionary add-on for Mac OS “Dictionary” app?

I've seen there's other dictionaries you can add to OS X's Dictionary app, but all I can find is spoken languages. It'd be nice to, while reading a software book, be able to right click a unix ...
3
votes
1answer
233 views

EXT3 file system pre digest material

I am looking for understanding EXT3 filesystem source code. I think I need a little pre-digestion to fully understand the code. Can anyone please suggest some material(blog etc.) where I can get some ...
3
votes
1answer
123 views

What has happened w.r.t books about linux device driver programming in the last eight years? [closed]

This is probably a silly-sounding question, but one that I think there exists an objectively right answer to which makes me compelled to ask it. I am trying to understand the fundamentals of linux ...
2
votes
1answer
150 views

Is there a reference for the assembler-like output produced by `awk -W dump`?

The command awk -W dump ... produces a dump of "assembler-like" code (as shown here [link], or by reading the man). Some of the instructions are easy to guess at their meaning such as jz, which is ...
1
vote
2answers
355 views

Cross Unix Command Reference

I am looking for a website that contains a reference between how to do things on the command line in different unix OSs. I have seen such site before, I am just unable to find it. I know such site ...
0
votes
2answers
95 views

What do the options after a specific command mean?

How do I understand what the various options/flags mean? For example: 1) uname -a - What does -a denote here? 2) pyang -f - What does -f denote here? I just want to understand if there is some ...
0
votes
2answers
501 views

how to get the size of an indirect array in bash?

Without using eval. this wont work: astr=(a b c) str="#astr[@]" echo "${!str}"
0
votes
1answer
79 views

Official [beginner friendly distro] reference for actual beginners [closed]

Is there official documentation for any distro accessible to complete *nix beginners? That is, aimed at the 95% least technical computer users: Assumes an already installed desktop system with ...
0
votes
1answer
211 views

Is the regex defining the arguments to the execve syscall in the Linux Audit standard still used?

According to the field dictionary[1] there are fields which names are defined by the following regex: a[[:digit:]+]\[.*\] I was able to find examples of fields like a4 and a5 (see 2) but it doesn't ...
0
votes
1answer
448 views

Check compatibility with Linux before installing

I have a new computer, more precisely an Asus N750J, and I would like to check the compatibility of the hardware with Linux before installing (dual boot is the plan), to be prepared and prevent ...
-1
votes
2answers
2k views

best powerpoint presenter for linux [closed]

I am using Linux Mint 17.1 rebecca. I need to use a powerpoint presenter in my laptop. Are such Powerpoint presenters are OS dependent? If so what can I use on my Linux? I am using Beamer class to ...
-1
votes
1answer
194 views

I want to extract part of a line using sed and backreference

1.The Greater Company :(Ranked 2) 5.United Taxi Service :(Ranked 3) 31.The Cacao Company :(Ranked 4) 40.Monster Inc. :(Ranked 5) 55.Afala, Industrial Strength :(Ranked 6) 60.The North Company :(...