06-03-2008
Quote:
Originally Posted by
pravani1
But the value of numbers are not fixed. But i want to grep only last min to max nos.... please help
What does grep have to do with this?
And what do you mean by min to max with relation to 'last 3'?
Here's a simple was to get the sorted last 3:
sort -un filename | tail -3
Here's a simple was to get the min and max:
sort -un filename | head -1 ; sort -un filename | tail -1
FYI: The u switch produces unique output, while the n switch sorts numerically (i.e. so 234 comes before 1234).
---
Intersting:
For curiosity, I changed one of the 432 values in the middle to 0432 then tried it and got this result:
sort -un filename
315
381
382
0432
433
I had to use sort WITHOUT the u switch followed by uniq to include both 0432 and 432:
sort -n filename | uniq
315
381
382
0432
432
433
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
What is the command used by sysadmin to see the disk used by the users in descending order of their disk usage? (8 Replies)
Discussion started by: asutoshch
8 Replies
2. UNIX for Dummies Questions & Answers
How can I sort a file as follows ?
cols 1 - 10 ascending
cols 11 - 18 descending
cols 19 - 20 ascending
Thanks (1 Reply)
Discussion started by: don_0110
1 Replies
3. Shell Programming and Scripting
Hi All,
I am encountered with a problem while sorting a file based on multiple columns . I need to sort like:
(field2,ascending) , (field3,ascending) ,(field8,descending) , (field7,ascending),(field13,ascending).
So far i was sorting only in ascending order but here i need to use one... (1 Reply)
Discussion started by: apjneeraj
1 Replies
4. Shell Programming and Scripting
Hi
I have a problem with sort command :
sort -nk 1.28,1.34 file | sort -nrk 1.27 file | sort -nk 1.22,1.25 file |sort -nk 1.13,1.21 file | sort -nk 1.9,1.12 file | sort -nk 1.1,1.8 file
This is the input file
0000000100010000000200004090317003
0000000100010000000230001020592002... (3 Replies)
Discussion started by: Fafa
3 Replies
5. UNIX for Dummies Questions & Answers
Hi,
I want to short descending all the files according to their size.Please help me.. (1 Reply)
Discussion started by: jyotidas
1 Replies
6. Shell Programming and Scripting
Input file
9.99331e-13
8.98451e-65
9.98418e-34
7.98319e-08
365592
111669
74942.9
0
Desired output
365592
111669
74942.9
7.98319e-08
1.99331e-13
6.98418e-34 (2 Replies)
Discussion started by: perl_beginner
2 Replies
7. Shell Programming and Scripting
hi all
i want to remove some descending order number
example :
1 100 200 135.00 Gk_wirs 1
1 100 200 136.00 Gk_wirs 50
1 110 210 138.00 Gk_wirs 60
1 100 200 136.00 Gk_wirs 57 ----> how to remove... (6 Replies)
Discussion started by: nithyanandan
6 Replies
8. UNIX for Dummies Questions & Answers
I have a text file where I want to append a column of numbers in ascending orders.
Input:
57 abc
25 def
32 ghi
54 jkl
Output:57 abc
57 abc 1
25 def 2
32 ghi 3
54 jkl 4
How do I go about doing that? Thanks! (11 Replies)
Discussion started by: evelibertine
11 Replies
9. UNIX for Dummies Questions & Answers
Hi,
I am trying to sort the following file in descending order of its fourth column.
2 1 363828 -2.423225e-03
3 1 363828 4.132763e-03
3 2 363828 8.150133e-03
4 1 363828 4.126890e-03
I use
sort -k4,4g -r input.txt > output.txt ... (1 Reply)
Discussion started by: evelibertine
1 Replies
10. Shell Programming and Scripting
Hi,
I have a problem . I have few directories like inpTDT_1, inpTDT_2, inpTDT_3 and so on inside HOME directory . In one of my perl script (which is in my HOME), the above directories like inpTDT_1, inpTDT_2, inpTDT_3 are sorting out in an order So I wanted to sort all the inpTDT_1, inpTDT_2,... (1 Reply)
Discussion started by: venkatesh
1 Replies
LEARN ABOUT REDHAT
dlacon
DLACON(l) ) DLACON(l)
NAME
DLACON - estimate the 1-norm of a square, real matrix A
SYNOPSIS
SUBROUTINE DLACON( N, V, X, ISGN, EST, KASE )
INTEGER KASE, N
DOUBLE PRECISION EST
INTEGER ISGN( * )
DOUBLE PRECISION V( * ), X( * )
PURPOSE
DLACON estimates the 1-norm of a square, real matrix A. Reverse communication is used for evaluating matrix-vector products.
ARGUMENTS
N (input) INTEGER
The order of the matrix. N >= 1.
V (workspace) DOUBLE PRECISION array, dimension (N)
On the final return, V = A*W, where EST = norm(V)/norm(W) (W is not returned).
X (input/output) DOUBLE PRECISION array, dimension (N)
On an intermediate return, X should be overwritten by A * X, if KASE=1, A' * X, if KASE=2, and DLACON must be re-called with all
the other parameters unchanged.
ISGN (workspace) INTEGER array, dimension (N)
EST (output) DOUBLE PRECISION
An estimate (a lower bound) for norm(A).
KASE (input/output) INTEGER
On the initial call to DLACON, KASE should be 0. On an intermediate return, KASE will be 1 or 2, indicating whether X should be
overwritten by A * X or A' * X. On the final return from DLACON, KASE will again be 0.
FURTHER DETAILS
Contributed by Nick Higham, University of Manchester.
Originally named SONEST, dated March 16, 1988.
Reference: N.J. Higham, "FORTRAN codes for estimating the one-norm of a real or complex matrix, with applications to condition estimation",
ACM Trans. Math. Soft., vol. 14, no. 4, pp. 381-396, December 1988.
LAPACK version 3.0 15 June 2000 DLACON(l)