10-12-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I confess to be stuck ...
as explained here
Aliases - Bash Reference Manual
I added
shopt -s expand_aliasesto my script ... but it didn't work.
Later I've read I had to add this at the begning of my my script :
. ~/.bash_aliases(of course my aliases are in this file)
but again, the... (0 Replies)
Discussion started by: xib.be
0 Replies
2. UNIX for Dummies Questions & Answers
Hello
I would like to help me create a script that:
Given a date, more precisely a year, one month and one day. must calculate the day after
-Input: Year, Month, Day
-Output: Next day the Year-Month-Day
thanks (9 Replies)
Discussion started by: karkov
9 Replies
3. Emergency UNIX and Linux Support
Hi ,
during 2 weeks i´ve been trying to find them.
i need DCMU packets for managing internal disks on sun fire x4500 and sun fire x4600 on rhel. i have opened to tickets to myoraclesupport but no answer.
please anybody could tell me a link or anythiing?? i´ve been searching and searching... (1 Reply)
Discussion started by: pabloli150
1 Replies
4. Shell Programming and Scripting
I wrote the day calculator also in bash. I would like to now, that is it good so?
#!/bin/bash
datum1=`date -d "1991/1/1" "+%s"`
datum2=`date "+%s"`
diff=$(($datum2-$datum1))
days=$(($diff/(60*60*24)))
echo $days
Thanks in advance for your help! (3 Replies)
Discussion started by: kovacsakos
3 Replies
5. UNIX for Dummies Questions & Answers
I posted this question before 2 months and gain a solution. Thanks again for this, but I tried it now and had no success. Could the specialists be so kind to have a second look please.
Please look down to see the whole code.
All 3 shown calculation possibilities have the same result... (12 Replies)
Discussion started by: Pieter0815
12 Replies
6. Hardware
As the title suggests, I'm trying to install a second drive (really want an OS mirror) on a Sun Netra X1.
I've taken the spacer out, and had a go at with the drill-press so now I have a nice HDD tray. Have installed an IDE drive in the tray, plugged in the power and data cables that were... (0 Replies)
Discussion started by: Smiling Dragon
0 Replies
7. Shell Programming and Scripting
I have the following code in bash, however "set red frmt" is not displayed.
echo "iarg_rd = $iarg_rd"
iarg_rd="2"
if ; then
echo "Hello World"
fi
if ; then
frmt="${gap}${!frmt_titl_yl}"
elif ; then
frmt="${gap}${!frmt_titl_bk}"
elif ; then
echo... (2 Replies)
Discussion started by: kristinu
2 Replies
8. Shell Programming and Scripting
I have a file of sites and each site has a variable number of flow values with a date for each value. I want to determine the max value of flow for each site and output the site number, max value, and date of max value.The format structure (simplified) is the following:
Record Site Number ... (5 Replies)
Discussion started by: cparr
5 Replies
9. Shell Programming and Scripting
Hi,
I need to write a bash script that when i enter two ip address, it will calculate summerize address for them.
Examlpe:
192.168.1.27/25
192.168.1.129/25
Result will be:
192.168.1.0/24
can you help me with this script?
I even dont know how to start with it (3 Replies)
Discussion started by: Miron
3 Replies
10. Shell Programming and Scripting
I am trying to use awk to calculate the average of all lines in $2 for every file in a directory. The below bash seems to do that, but I cannot figure out how to capture the string before the _ as the output file name and have it be tab-delimeted. Thank you :).
Filenames in... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT DEBIAN
derivations
DERIVATIONS(7) Derivations of Applied Mathematics DERIVATIONS(7)
NAME
derivations - book: Derivations of Applied Mathematics
DESCRIPTION
Understandably, program sources rarely derive the mathematical formulas they use. Not wishing to take the formulas on faith, a user might
nevertheless reasonably wish to see such formulas somewhere derived.
Derivations of Applied Mathematics is a book which documents and derives many of the mathematical formulas and methods implemented in free
software or used in science and engineering generally. It documents and derives the Taylor series (used to calculate trigonometrics), the
Newton-Raphson method (used to calculate square roots), the Pythagorean theorem (used to calculate distances) and many others.
READING THE BOOK
Among other ways, you can read the book on your computer screen by opening the file /usr/share/doc/derivations/derivations.ps.gz with the
gv(1) program under X(7). To print the book on a standard postscript printer, just zcat(1) then lpr(1) the same file.
FILES
/usr/share/doc/derivations/derivations.ps.gz
the book in postscript format
/usr/share/doc/derivations/derivations.pdf.gz
the book in PDF
BUGS
The book is a work in progress.
AUTHOR
The book and this manpage are written by Thaddeus H. Black, who also maintains the Debian package derivations in which they are distrib-
uted. Users who need to contact the author in his role as Debian package maintainer can reach him at <thb@debian.org>. However, most e-
mail will naturally be about the book itself: this should be sent to <thb@derivations.org>.
COPYLEFT
Copyright (C) 1983-2010 Thaddeus H. Black.
The book, this manpage and the entire derivations distribution are free software. You can redistribute them and/or modify them under the
terms of the GNU General Public License, version 2.
SEE ALSO
gv(1) [gv], zcat(1) [gzip], psselect(1) [psutils], lpr(1) [lpr], octave(1) [octave]
Thaddeus H. Black 10 March 2010 DERIVATIONS(7)