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)
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 $b
exit
And the exit is:
0,00
.9975730
Thus, the problem is that the printf order does not... (2 Replies)
Hello, I have an output like
Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - and I want to take only the 'wlan0' string. This can be done by
a="Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - "
b=${a:25:6}
echo $bThe thing is that wlan0 can be something else, like eth0 or... (2 Replies)
What is the deal with explanation point in bash? I thought only dollar sign ($), 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)
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)
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)
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)
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
LEARN ABOUT PHP
set_color
set_color(1) fish set_color(1)NAME
set_color - set_color - set the terminal color
set_color - set the terminal color
Synopsis
set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]
Description
Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
cyan, white and normal.
o -b, --background Set the background color
o -c, --print-colors Prints a list of all valid color names
o -h, --help Display help message and exit
o -o, --bold Set bold or extra bright mode
o -u, --underline Set underlined mode
o -v, --version Display version and exit
Calling set_color normal will set the terminal color to whatever is the default color of the terminal.
Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
font color, while set_color --bold white will result in a white font color.
Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.
set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
ncurses and recompile fish against it in order to fix this issue.
Version 1.23.1 Sun Jan 8 2012 set_color(1)