Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: README: Factorial quick chart with sed & bc:
Top Forums Shell Programming and Scripting README: Factorial quick chart with sed & bc: Post 302767397 by alister on Wednesday 6th of February 2013 08:43:03 PM
Old 02-06-2013
Quote:
Originally Posted by rveri
Code:
# n=20;for i in `seq $n`;do printf "`seq $i|xargs|sed 's/ /*/g'`= ";echo "`seq $i|xargs|sed 's/ /*/g'`"| bc;done
...<snip>...
# n=20;for i in `seq $n -1 1`;do printf "`seq $i|xargs|sed 's/ /*/g'`= ";echo "`seq $i|xargs|sed 's/ /*/g'`"| bc;done
#

Thank you for sharing, rveri. I took the liberty of further distilling your contribution. The following use a subset of the tools used by your originals.
Code:
Distilled ascending:
n=20; for i in $(seq $n); do s=$(seq -s\* $i); printf "\"$s= \"\n$s\n" | bc; done

Distilled descending:
n=20; for i in $(seq $n -1 1); do s=$(seq -s\* $i); printf "\"$s= \"\n$s\n" | bc; done

Regards,
Alister
This User Gave Thanks to alister For This Post:
rveri
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

a quick SED question

I have a line EXTDIR=`echo $i | sed 's/\-tar.gz//'` which looks for files ending in -tar.gz, i would like to increase the functionality so that it looks for .tar.gz files as well as -tar.gz. Do i put the - in square brackets with a dot ? like this EXTDIR=`echo $i | sed 's/\tar.gz//'` ... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

2. Shell Programming and Scripting

quick sed question

hey, Im just wondering is there away to get sed to read from a variable eg it doesn't seem to work, i really need to be able to recursively change the same data set... (2 Replies)
Discussion started by: vbm
2 Replies

3. Shell Programming and Scripting

quick sed help

what's the code for delete everything before sssss asdf become: (3 Replies)
Discussion started by: katrvu
3 Replies

4. Shell Programming and Scripting

I can't figure this out? Quick help with sed

I am trying to delete everything in the parenthesis(including the parenthesis) in this text: Wind: from the WNW (290 degrees) at 6 MPH (5 KT) Pressure (altimeter): 29.82 in. Hg (1009 hPa) Temperature: 80.1 F (26.7 C) Dew Point: 72.0 F (22.2 C) Relative Humidity: 76% Trying to make it look... (3 Replies)
Discussion started by: pmoore4321
3 Replies

5. Shell Programming and Scripting

sed & areas respectively sed & pyramiding

Hello everyone, i wonder if someone could give me an advice regarding the following problem using sed. Given ist a structure as shown below: <aaa>text1<b>text2</b>text3<c>text4</c>text5</aaa> Now I want to change the outer tag from "aaa" to "new" and replace all tags inside the outer tags... (4 Replies)
Discussion started by: Donaldinho
4 Replies

6. AIX

README: Install tripwire on AIX

We had a SAS70 audit at our site a few months back and part of the end result was that I had to install tripwire to monitor our application binaries. We were able to compile tripwire for our AIX 5.3 server but after a few months I was asked to install it on other systems. I could have and did just... (1 Reply)
Discussion started by: juredd1
1 Replies

7. Programming

Quick question about '_&'

I've seen in other programmers code the use of '_&' as a line separator. I am trying to find in my C++ reference manual some pages dedicated to an explanation of the use of this '_&' but I don't know what it is called. I only know it is a "line separator" or "line break" of some sort which is... (0 Replies)
Discussion started by: sepoto
0 Replies

8. Shell Programming and Scripting

Factorial of any number using functions

how to write the code for factorial of any number using functions and arguments????? (7 Replies)
Discussion started by: kullu
7 Replies

9. Shell Programming and Scripting

Quick Sed Question

Just want to know why when I do the following in sed, the required is not extracted. echo "ab01cde234" | sed 's/*$//' result: ab01cde (Which is correct) echo "ab01cde234" |sed 's/.*\(*\)$/\1/' result: blank (was expecting 234) or echo "ab01cde234" |sed 's/.*\(\)*$/\1/' result: blank... (6 Replies)
Discussion started by: eo29
6 Replies

10. Shell Programming and Scripting

awk Help: quick and easy question may be: How to use &&

Hi Guru's. I am trying to use to check if $5 is greater than 80 & if not 100, then to print $0 : awk '{ if ($5>80) && if ($5 != 100) print $0} But getting error: >bdf1|sed 's/%//g'|awk '{ if ($5>80) && if ($5 != 100) print $0}' syntax error The source line is 1. The error... (6 Replies)
Discussion started by: rveri
6 Replies

LEARN ABOUT OPENSOLARIS

seq

SEQ(1)								   User Commands							    SEQ(1)

NAME

       seq - print a sequence of numbers

SYNOPSIS

       seq [OPTION]... LAST
       seq [OPTION]... FIRST LAST
       seq [OPTION]... FIRST INCREMENT LAST

DESCRIPTION

       Print numbers from FIRST to LAST, in steps of INCREMENT.

       -f, --format=FORMAT
	      use printf style floating-point FORMAT

       -s, --separator=STRING
	      use STRING to separate numbers (default: 
)

       -w, --equal-width
	      equalize width by padding with leading zeroes

       --help display this help and exit

       --version
	      output version information and exit

       If  FIRST  or  INCREMENT  is  omitted, it defaults to 1.  That is, an omitted INCREMENT defaults to 1 even when LAST is smaller than FIRST.
       FIRST, INCREMENT, and LAST are interpreted as floating point values.  INCREMENT is usually positive if FIRST  is  smaller  than	LAST,  and
       INCREMENT  is  usually  negative  if  FIRST  is	greater than LAST.  FORMAT must be suitable for printing one argument of type `double'; it
       defaults to %.PRECf if FIRST, INCREMENT, and LAST are all fixed point decimal numbers with maximum precision PREC, and to %g otherwise.

AUTHOR

       Written by Ulrich Drepper.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2006 Free Software Foundation, Inc.
       This  is  free  software.   You	 may   redistribute   copies   of   it	 under	 the   terms   of   the   GNU	General   Public   License
       <http://www.gnu.org/licenses/gpl.html>.	There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       The  full  documentation  for seq is maintained as a Texinfo manual.  If the info and seq programs are properly installed at your site, the
       command

	      info seq

       should give you access to the complete manual.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +--------------------+--------------------+
       |  ATTRIBUTE TYPE    |  ATTRIBUTE VALUE	 |
       +--------------------+--------------------+
       |Availability	    | SUNWgnu-coreutils  |
       +--------------------+--------------------+
       |Interface Stability | Uncommitted	 |
       +--------------------+--------------------+
NOTES

       Source for GNU coreutils is available on http://opensolaris.org.

seq 6.7 							   December 2006							    SEQ(1)
All times are GMT -4. The time now is 11:11 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy