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Top Forums UNIX for Beginners Questions & Answers How are environment variables defined in a Gnome terminal session? Post 303009877 by Don Cragun on Thursday 21st of December 2017 12:32:16 PM
Old 12-21-2017
In a macOS version 10.13.2 terminal window, if I type in the command:
Code:
who am i

it will reply with something like:
Code:
dwc      ttys006  Dec 17 12:52

If I then type in the command:
Code:
ps -t ttys006

it gives me something like:
Code:
  PID TTY           TIME CMD
  849 ttys006    0:00.02 login -pf dwc /bin/ksh
  850 ttys006    0:01.72 -ksh
81761 ttys006    0:00.00 ps -t ttys006

I would expect that running similar commands in your Gnome terminal window will produce similar results, but the first field in the output from who am i will be your login ID instead of mine and the 2nd field will be your terminal device ID instead of ttys006. If you then issue that ps command with your terminal device ID as the -t option option-argument, I would expect to see similar output on your screen with the -ksh in my output replaced by a -bash in your output. The login command shown in my output is what macOS uses to start a login session. There might or might not be a similar line in your ps output depending on how Centos starts a login session.
 

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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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