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Old 01-27-2016, 04:30 PM   #1
Joy Stick
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Standard unix io


I see some technology is using STANDARD UNIX IO ?
  1. What is STANDARD UNIX IO ?
  2. Is there any Standard/Non Standard IO for UNIX/LINUX ?
  3. UNIX is different, Linux is different then Why linux (RHEL/CENTOS) is using STANDARD UNIX IO ?

If my question is immature , please dont mud it.
 
Old 01-27-2016, 04:42 PM   #2
Didier Spaier
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What do you mean by "standard UNIX IO"? Can you give a reference, a link to a standard or specification, or at least an article tho which you refer?

I am sorry, but I just do not understand what you are talking about. Also, by IO do you mean I/O (Input/Output), or else what?

Last edited by Didier Spaier; 01-28-2016 at 05:51 PM. Reason: Typo fix.
 
Old 01-27-2016, 07:25 PM   #3
BW-userx
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Linux and GNU is modeled after UNIX POSIX
 
Old 01-27-2016, 09:34 PM   #4
jpollard
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Quote:
Originally Posted by Joy Stick View Post
I see some technology is using STANDARD UNIX IO ?
  1. What is STANDARD UNIX IO ?
  2. Is there any Standard/Non Standard IO for UNIX/LINUX ?
  3. UNIX is different, Linux is different then Why linux (RHEL/CENTOS) is using STANDARD UNIX IO ?

If my question is immature , please dont mud it.
I suspect you are referring to "stdio.h" facility for programming, but can't be sure as the term "STANDARD UNIX IO" doesn't make any sense.

Linux is based on standards - and the only standard commonly accepted has been POSIX, and Linux follows that, though not everything in Linux does.

Using POSIX DOES mean that programs that run on UNIX systems will USUALLY run on Linux just by recompiling. I say USUALLY because there are a lot of UNIX programs that use proprietary libraries in addition. These will not recompile/run on Linux UNLESS the proprietary libraries exist on Linux or a functional equivalent is available on Linux.

Last edited by jpollard; 01-27-2016 at 09:35 PM.
 
Old 01-28-2016, 05:45 PM   #5
jefro
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Standard Unix I/O? Input output?
 
Old 01-28-2016, 08:32 PM   #6
frankbell
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If jefro's guess is correct, see

[COPY]man stdin
stdout
man stderr
[/COPY]
 
Old 01-28-2016, 09:00 PM   #7
BW-userx
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I don't want to look like the bad guy, but, I'm finding it rather .... that someone cannot understand that IO in the sentance Standard Unix IO -- consider the contents people he/she meant to say I/O --

do you say I Backslash O when you talk about it to someone?

Last edited by BW-userx; 01-28-2016 at 09:06 PM.
 
Old 01-28-2016, 09:56 PM   #8
frankbell
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Given how much jargon exists in Computer World, I see nothing wrong with persons' asking clarifying questions.

The road to misunderstanding is paved with assumptions.
 
Old 01-28-2016, 10:19 PM   #9
MrTux
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POSIX.


IF you are reffering to something different maybe the good ole days of AS400 would be a different "Unix i/o"
 
Old 01-29-2016, 10:54 AM   #10
hidalgo_socorro
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Maybe he meant how to use IO on shell ?

cat /file > /otherfile (Redirect stdout)

while read line; do (Redirect stdin)
echo $line
done < /otherfile

Last edited by hidalgo_socorro; 01-29-2016 at 10:57 AM.
 
Old 01-29-2016, 11:08 AM   #11
BW-userx
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Quote:
Originally Posted by hidalgo_socorro View Post
Maybe he meant how to use IO on shell ?
when you say "how to use IO on shell" what do you mean by shell? nut shell, walnut maybe? like in, "I couldn't get my shell open so I went all IO on it"?

Last edited by BW-userx; 01-29-2016 at 11:17 AM.
 
Old 01-29-2016, 11:19 AM   #12
hidalgo_socorro
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I meant bash or any other shell. Why is this an issue ?
Quote:
Originally Posted by BW-userx View Post
when you say "how to use IO on shell" what do you mean by shell? nut shell, walnut maybe? like in, "I couldn't get my shell open so I went all IO on it"?
 
Old 01-29-2016, 11:21 AM   #13
BW-userx
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....Given how much jargon exists in Computer World, I see nothing wrong with persons' asking clarifying questions.

The road to misunderstanding is paved with assumptions.......
frankbell
LQ Guru

Last edited by BW-userx; 01-29-2016 at 11:27 AM.
 
Old 01-29-2016, 11:23 AM   #14
suicidaleggroll
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Quote:
Originally Posted by BW-userx View Post
when you say "how to use IO on shell" what do you mean by shell? nut shell, walnut maybe? like in, "I couldn't get my shell open so I went all IO on it"?
Don't be a brat.

Instead of attacking everyone else in the thread, if you think the question is so clear, then how about you answer it? Even if he does mean I/O, the question is still vague and ambiguous, and I see no issue with people asking for clarification.
 
Old 01-29-2016, 11:30 AM   #15
BW-userx
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Quote:
Originally Posted by suicidaleggroll View Post
Don't be a brat.

Instead of attacking everyone else in the thread, if you think the question is so clear, then how about you answer it? Even if he does mean I/O, the question is still vague and ambiguous, and I see no issue with people asking for clarification.
I already did (give my answer), then people seemed to have forgotten about the spoken word and common sense.

when someone comes up to you and says what is UNIX IO or what is IO when when you know the contents is about computer or programming what is your immediate thought? Input/outPut or somthing else that uses the letters IO?

Last edited by BW-userx; 01-29-2016 at 11:35 AM.
 
  


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