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1
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0answers
35 views

List of POSIX-certified operating systems?

Where can I find a list of POSIX-certified operating systems? The official list contains just six entries.
3
votes
1answer
172 views

Unicode-based POSIX tools (other than Cygwin) for Windows?

GNU Win32 and MSYS are awesome, but it seems like all of their tools use the ANSI version of the Windows API, rather than the Unicode versions. Obviously, those are meant for Windows 95 and 98, not ...
0
votes
1answer
92 views

If SUS exists then why there's also POSIX? [closed]

We know that to define whether the system is Unix or not there's a Single UNIX Specification(SUS) which is held by OpenGroup. Then why there's another certification as POSIX? Are these things the ...
3
votes
3answers
106 views

Does Unix stand for any POSIX-compilant system?

When someone is saying "Unix" does it mean that it can be every POSIX-compatible system including linux distributives, solaris, freebsd etc?
1
vote
2answers
150 views

What does it mean to have a POSIX-compilant operating system?

What does it mean if the operating system is said to be POSIX-compilant?
3
votes
4answers
89 views

MacOS command-line - possible to write portable scripts across MacOS and Linux?

I've been mostly pleased with MacOS as a dev platform, and it's somewhat similar to a linux command-line, but there are a number of notable exceptions: all commands: arguments parsing behavior ...
14
votes
2answers
558 views

less is more? Is more less? I'm so confused

When I first heard their names, I got really confused when I tried to guess what these tools might do, I thought I'd misheard something. What's the difference between more and less, i.e. why ...
0
votes
0answers
54 views

Is the old pre-XP Windows NT POSIX subsystem binary compatible with Interix?

Before Windows XP and before Interix, Windows NT had a POSIX subsystem essentially do to the same job now done by Interix. Was that subsystem binary compatible with Interix? Could I run POSIX ...
1
vote
2answers
81 views

How to copy file into an incrementally numbered dir?

For instance, if there is dir 3: mkdir 4; cp file 4 The dir could also be called 3 other text. Still no text needs to be in mkdir 4 besides the incremented number. The highest number needs to be ...
3
votes
5answers
383 views

Why do we use ./progname in *nix systems to execute a program?

I've been using Linux & Mac for sometime now and I always wonder - Why do we have to execute a program like ./progname . I know Unix treats every thing as a file and it stores the filename in a ...
0
votes
4answers
69 views

How to list dirs containg a file?

I'm trying to use find to list dirs with a certain file inside, but my dirs have spaces so I haven't found a solution.
2
votes
1answer
138 views

What is The POSIX standard?

In plain and simple terms, what is the posix standard and why does it matter? Also if I have two systems that are 100% posix compatible, would code compiled for one work on the other without a ...
1
vote
2answers
252 views

PC multi-core architecture, scheduling of cores access to system memory

My office computer has 8 cores. I recently upgraded the system from 4Gb of RAM (in two modules) to 24Gb of RAM (in six modules) and noticed a considerable increase in performance when multiple cores ...
4
votes
5answers
274 views

Standard way to duplicate a file's permissions

I am trying to find a standard POSIX way to duplicate one file's permissions to another file. On a GNU system this is easy: [alexmchale@bullfrog ~]$ ls -l hardcopy.* -rw-r--r-- 1 alexmchale users ...
0
votes
1answer
361 views

Difference between /usr/bin/login and /usr/bin/bash [closed]

Possible Duplicate: Differences between /usr/bin/login and /usr/bin/bash What is the difference between /usr/bin/login, and /usr/bin/bash? Does the first command something more, or ...
1
vote
5answers
1k views

Differences between /usr/bin/login and /usr/bin/bash

Terminal.app has the setting "Shells open with:" with the option "Default login shell (/usr/bin/login)", and "Command (complete path)" that by default contains "/usr/bin/bash". The dafault option for ...
2
votes
1answer
162 views

Permissions issue Mac OS X Client -> Mac OS X Server

I can't get access to a folder on our server and can't understand why. Perhaps someone will see what I'm overlooking... Trouble accessing /Library/Subdirectory/NextDirectory/ User joe can ssh to the ...
3
votes
1answer
885 views

Linux / Perl - What happens when a process is forked?

I've read about fork and from what I understand, the process is cloned but which process? The script itself or the process that launched the script? For example: I'm running rTorrent on my machine ...
1
vote
1answer
138 views

Folder where bash script resides when running via ln -s

In /usr/local/bin I have a 'ln -s' to /usr/local/foo/bash.script, and in this latter script I want to know the current /usr/local/foo directory, so that I can run a secondary script from that folder. ...
1
vote
5answers
537 views

Is there a POSIX pathname that can't name a file?

Are there any legal paths in POSIX that cannot be associated with a file, regular or irregular? That is, for which test -e "$LEGITIMATEPOSIXPATHNAME" cannot succeed? Clarification #1: pathnames By ...
14
votes
5answers
317 views