10-19-2010
Environment variables
why are all environment variables represented in a fixed format regardless of the shell you use?
like $HOME $PATH etc
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
what is the actual use of environment variables.
I know only PS1, LOGNAME, PS2 variables
what are the other variables & what is there use (2 Replies)
Discussion started by: indianguru
2 Replies
2. Programming
Hi!
How-to get the environment variables in GNU.
getenv() only fetches the ones that you can find under export (not the ones under declare)...
best regars .David (2 Replies)
Discussion started by: Esaia
2 Replies
3. UNIX for Dummies Questions & Answers
Hi Folks,
Is it possible somehow to unset all the environment variables which have been defined before in UNIX (Solaris).
Thanks,
Slava (3 Replies)
Discussion started by: spavlov
3 Replies
4. UNIX for Dummies Questions & Answers
hi,
1). i would like to know what is meant by environment variables?
2). is the number of envi variables is a constant number for unix systems?
3). how to see the list of envi variables (and the values of the envi variables)in a single command?
4). if this questions were already asked... (3 Replies)
Discussion started by: sekar sundaram
3 Replies
5. Programming
hi,
I want to create a new EV(Environment Variable) through a c program and I done this thing through setenv() method. But the newly created EV is not permanent, i.e. when I exit from the program the EV also no longer lives. But I want to make it a permanent EV for the current user. Actually I... (6 Replies)
Discussion started by: sumsin
6 Replies
6. Shell Programming and Scripting
Hi,
If i have a variable set and exported in my pofile file will that variable be available in all shell scripts created.
Thanks,
Radhika. (3 Replies)
Discussion started by: radhika03
3 Replies
7. Shell Programming and Scripting
I have read tons of posts about how you can't set persisting environment variable in a child script of a shell and have it persist. The only way is to source a file as
% . <scriptname>
I am finding that true... but I know there is a way around it. I just don't know how. I worked for 6... (5 Replies)
Discussion started by: rwa25
5 Replies
8. HP-UX
Hi Experts,
Need your help in understanding the commands to setup the environment variables in hp-ux.
Beleive need to use either set,setenv or export.
I am confused between above three options, when to use which option?
On command line, I have tried both set and setenv but couldn't... (1 Reply)
Discussion started by: sai_2507
1 Replies
9. Homework & Coursework Questions
1. The problem statement:
What is the mesg value set for your environment? If it is on, how would you turn off your current
session? How would you set it permanently?
3. The attempts at a solution :
Read Unix The textbook.
3rd chapter has many things like environment variables and... (5 Replies)
Discussion started by: mahinkhan22
5 Replies
10. HP-UX
Hi All,
I need to understand following three environment variables and their usages in HP Unix.
_M_ARENA_OPTS
_M_CACHE_OPTS
PTHREAD_SCOPE_SYSTEM
How does these environment variables influence multi threaded applciation and how do we decide the value of these variables? Is there... (0 Replies)
Discussion started by: angshuman
0 Replies
LEARN ABOUT DEBIAN
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)