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Top Forums Shell Programming and Scripting Array Length Reports as Having Length when it is Empty? Post 302703889 by Corona688 on Thursday 20th of September 2012 01:35:09 PM
Old 09-20-2012
In that case, there doesn't appear to be one, since $( ) doesn't get split. Other things like variables or a literal string would get split without quotes however.

This is because of a feature the bourne shell has. You can set a variable for a single command:

Code:
HTTP_PROXY="localhost:3128" wget http://whatever.com/

The red is the variable, the blue is the command. wget is a command to download webpages, and checks the HTTP_PROXY variable for what proxy to use.

So if you do
Code:
STRING=a b

, it doesn't try to set the string to "a b", it sets STRING=a and tries to run the command b.

Last edited by Corona688; 09-20-2012 at 02:46 PM..
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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)
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