Sponsored Content
Full Discussion: Exclamation point in Bash
Top Forums Shell Programming and Scripting Exclamation point in Bash Post 302317621 by Enobarbus37 on Tuesday 19th of May 2009 12:10:14 PM
Old 05-19-2009
Well, I had only recently started using the double quotes in the expression, and I had not yet gotten around to escaping the ! in the double quotes.

So, you are right. Félicitations et chapeau. Mille mercis.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Floating point numeric comparisions in bash

Hi, I am trying to compare 2 floating point numbers 0.8 and 0.15 using bash and get the largest of the two. Can anyone advise. (2 Replies)
Discussion started by: borncrazy
2 Replies

2. Shell Programming and Scripting

BASH: floating point exception

Hi, guys, today, I have copied a simple script which runs correctly on a computer to another one. But, the latter informs me: Floating point exception! @ ./command_module a b c where command_module is the module compiled by myself. So, I have fixed it by following steps: 1.... (5 Replies)
Discussion started by: mapleleaves
5 Replies

3. Shell Programming and Scripting

floating point not recognized by printf in bash

Dear all, I have the following question. Let's say that I have the following script #!/bin/bash value=0.4987865 a=` printf "%6.2f" $value ` b=`echo $value + $value | bc -l` echo $a echo $b exit And the exit is: 0,00 .9975730 Thus, the problem is that the printf order does not... (2 Replies)
Discussion started by: josegr
2 Replies

4. Shell Programming and Scripting

Bash take word after specific point and till next space?

Hello, I have an output like Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - and I want to take only the 'wlan0' string. This can be done by a="Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - " b=${a:25:6} echo $bThe thing is that wlan0 can be something else, like eth0 or... (2 Replies)
Discussion started by: hakermania
2 Replies

5. Shell Programming and Scripting

[BASH] Regex for floating point number

Hey again, I have a basic regex that tests if a number is a float. Thank you. (5 Replies)
Discussion started by: whyte_rhyno
5 Replies

6. UNIX for Advanced & Expert Users

explanation point bash

What is the deal with explanation point in bash? I thought only dollar sign ($), the back-tick (`) and the backslash (\) were special in double quotes. Can someone please explain what is going on here? Why do I have to use single quotes or backslash the "!"? $ vlc "/media/Part... (4 Replies)
Discussion started by: cokedude
4 Replies

7. Shell Programming and Scripting

Bash Floating point math with bc

Hello Everyone, I am currently working on a script to calculate optimal tcp window size the formula that I am following is 2 x (bandwith speed /8 * Round Trip Time ) = x This is what I have so far #!/bin/bash echo "Enter connection speed" << Get the speed of the Connection from... (3 Replies)
Discussion started by: bmfmancini
3 Replies

8. Shell Programming and Scripting

[BASH] Floating point exception

Heyas I have a script (vhs - video handler script, using ffmpeg) to encode videos. It also encodes a dvd, but until now just non-copy-protected ones, so i've tried to add/implement a vobcopy wrapper to be used by my script. At first it looked quite fine, but when changing from the first VOB... (9 Replies)
Discussion started by: sea
9 Replies

9. Shell Programming and Scripting

Bash script to print the smallest floating point number in a row that is not 0

Hello, I have often found bash to be difficult when it comes to floating point numbers. I have data with rows of tab delimited floating point numbers. I need to find the smallest number in each row that is not 0.0. Numbers can be negative and they do not come in any particular order for a given... (9 Replies)
Discussion started by: LMHmedchem
9 Replies

10. Shell Programming and Scripting

Comparison of floating point numbers in bash

I have the following code snippet in bash if ]; then minm=`echo "$diff" | bc` fi It works well for most of the cases. However lets say diff is -0.17 and minm is -0.0017. In such a case the comparison seems to fail. Is the correct way to compare a mixture of positive and... (12 Replies)
Discussion started by: ngabrani
12 Replies
Pango::Matrix(3pm)					User Contributed Perl Documentation					Pango::Matrix(3pm)

NAME
Pango::Matrix - A structure specifying a transformation between user-space coordinates and device coordinates HIERARCHY
Glib::Boxed +----Pango::Matrix METHODS
matrix = Pango::Matrix->new ($xx=1., $xy=0., $yx=0., $yy=1., $x0=0., $y0=0.) o $xx (double) o $xy (double) o $yx (double) o $yy (double) o $x0 (double) o $y0 (double) $matrix->concat ($new_matrix) o $new_matrix (Pango::Matrix) $matrix->rotate ($degrees) o $degrees (double) $matrix->scale ($scale_x, $scale_y) o $scale_x (double) o $scale_y (double) (dx, dy) = $matrix->transform_distance ($dx, $dy) o $dx (double) o $dy (double) Since: pango 1.16 array reference = $matrix->transform_pixel_rectangle ($rect) o $rect (array reference) Since: pango 1.16 (x, y) = $matrix->transform_point ($x, $y) o $x (double) o $y (double) Since: pango 1.16 array reference = $matrix->transform_rectangle ($rect) o $rect (array reference) Since: pango 1.16 $matrix->translate ($tx, $ty) o $tx (double) o $ty (double) double = $matrix->x0 ($new) o $new (double) double = $matrix->xx ($new=0) o $new (double) double = $matrix->xy ($new) o $new (double) double = $matrix->y0 ($new) o $new (double) double = $matrix->yx ($new) o $new (double) double = $matrix->yy ($new) o $new (double) SEE ALSO
Pango, Glib::Boxed COPYRIGHT
Copyright (C) 2003-2011 by the gtk2-perl team. This software is licensed under the LGPL. See Pango for a full notice. perl v5.14.2 2011-11-15 Pango::Matrix(3pm)
All times are GMT -4. The time now is 03:33 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy