Sponsored Content
Full Discussion: Quick Question: Sorting
Top Forums UNIX for Dummies Questions & Answers Quick Question: Sorting Post 302665555 by agama on Monday 2nd of July 2012 10:28:35 PM
Old 07-02-2012
I don't know how efficient this is, but it might work well enough if your files are small:

Code:
awk '
  {
     split( $0, a, " " ); 
     asort( a ); 
     for( i = 1; i <= length( a ); i++ ) 
        printf( "%d ", a[i] );
      printf( "\n" ); 
   }
' input-file >output-file

There used to be a bug in asort, so go with caution. Also, asort is a gnu extension (I believe) so it might not be available. You could write a small sort function in the awk programme; again I don't know how efficient that is. I use a small bubble sort function, to avoid asort, but only in conjunction with small tasks because of a concern for efficiency.

EDIT: I ran a quick test to sort 25 values per line, over 100,000 lines. It took 10.6s on my not so speedy laptop.

Last edited by agama; 07-02-2012 at 11:37 PM.. Reason: Additional info.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Quick Question

I know in DOS, when you want to pull up your last/previous command, you hit the up/down arrows. How do you do that with UNIX? (3 Replies)
Discussion started by: Tracy Hunt
3 Replies

2. UNIX for Dummies Questions & Answers

Quick Question

Hello There! I am trying to write this SIMPLE script in Bourne Shell but I keep on getting syntax errors. Can you see what I am doing wrong? I've done this before but I don't see the difference. I am simply trying to take the day of the week from our system and when the teachers sign on I want... (7 Replies)
Discussion started by: catbad
7 Replies

3. UNIX for Advanced & Expert Users

Quick VI question

This "SHOULD" be a simple question, but looking through several books has turned up nothing, so I turn once again to the experts!! How do you vi a file so that you can see special characters. I believe my /etc/passwd file is being corrupted during an upgrade process, however the files... (6 Replies)
Discussion started by: Recon
6 Replies

4. Shell Programming and Scripting

quick question

does anyone know what $? means? i echoed it on my box (running AIX Korn shell) and got 127 (2 Replies)
Discussion started by: penfold
2 Replies

5. UNIX for Dummies Questions & Answers

Quick Question

Hi, I am new to UNIX, and am learning from this tutorial : http://www.ee.surrey.ac.uk/Teaching/Unix/index.html It keeps telling me to files downloaded from the internet (like .txt files) to the directory, and I dont know how to. How do I add .txt files to my directory? Thanks. (6 Replies)
Discussion started by: IAMTHEEVILBEAN
6 Replies

6. UNIX for Dummies Questions & Answers

Quick question

Hi, Is there a simple way, using ksh, to find the byte position in a file that a stated character appears? Many thanks Helen (2 Replies)
Discussion started by: Bab00shka
2 Replies

7. UNIX for Dummies Questions & Answers

Quick question

Hello all, Quick question from a fairly new to Unix developer. if then completedLogFile=$logfile.$(date +%Y%m%d-%H:%M:%S) mv $logfile $completedLogFile fi I understand that this portion of code is simply copying a tmp logfile to a completed logfile when a condition is true. The... (2 Replies)
Discussion started by: JohnnyBoy
2 Replies

8. AIX

quick question

Hi, At best I'm a junior admin with a big problem. My developers have got my root password and mgmt insists they need it. I can't even change it when people knowing it leave. I'm certain they've hardcoded it into routines. I've searched my servers and grepped everything & can't find it. ... (5 Replies)
Discussion started by: keith.m
5 Replies

9. Shell Programming and Scripting

quick question

I am using sed to find a pattern in a line and then I want to retain the pattern + the rest of the line. How is this possible? ie: line is: 14158 05-15-08 20:00 123-1234-A21/deliverable/dhm.a search for 123-1234-A21 ie: echo $line | sed 's/.*\(\{3\}-\{4\}-\{3\}\{5\}\).*/\1/' ... (1 Reply)
Discussion started by: phreezr
1 Replies

10. UNIX for Dummies Questions & Answers

Quick question

Hi guys Quick question Im creating an FTP server and im chrooting each user to there home directory blah blah. Ive also setup scponly so there locked etc. Im a novice at unix and have just reaslised the primary group of scponly is the username of one of the ftp users... which im sure... (1 Reply)
Discussion started by: mokachoka
1 Replies
COLLATOR_ASORT(3)							 1							 COLLATOR_ASORT(3)

Collator::asort - Sort array maintaining index association

       Object oriented style

SYNOPSIS
public bool Collator::asort (array &$arr, [int $sort_flag]) DESCRIPTION
Procedural style bool collator_asort (Collator $coll, array &$arr, [int $sort_flag]) This function sorts an array such that array indices maintain their correlation with the array elements they are associated with. This is used mainly when sorting associative arrays where the actual element order is significant. Array elements will have sort order according to current locale rules. Equivalent to standard PHP asort(3). PARAMETERS
o $coll -Collator object. o $arr -Array of strings to sort. o $sort_flag - Optional sorting type, one of the following: o Collator::SORT_REGULAR - compare items normally (don't change types) o Collator::SORT_NUMERIC - compare items numerically o Collator::SORT_STRING - compare items as strings Default $sort_flag value is Collator::SORT_REGULAR. It is also used if an invalid $sort_flag value has been specified. RETURN VALUES
Returns TRUE on success or FALSE on failure. EXAMPLES
Example #1 collator_asort(3)example <?php $coll = collator_create( 'en_US' ); $arr = array( 'a' => '100', 'b' => '50', 'c' => '7' ); collator_asort( $coll, $arr, Collator::SORT_NUMERIC ); var_export( $arr ); collator_asort( $coll, $arr, Collator::SORT_STRING ); var_export( $arr ); ?> The above example will output: array ( 'c' => '7', 'b' => '50', 'a' => '100', )array ( 'a' => '100', 'b' => '50', 'c' => '7', ) SEE ALSO
Collator constants, collator_sort(3), collator_sort_with_sort_keys(3). PHP Documentation Group COLLATOR_ASORT(3)
All times are GMT -4. The time now is 07:19 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy