07-11-2012
PATH environment variable
PATH is an environment variable.
When I open a terminal say terminal 1 and set some path in PATH variable it gets set which I can see using ech $PATH.
But when I open a new terminal say terminal 2 and fire echo $PATH why cannot I see the same output as seen in terminal terminal 1?
Why the path added to PATH variable using one terminal is not reflected in another terminal?
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UL(1) General Commands Manual UL(1)
NAME
ul - do underlining
SYNOPSIS
ul [ -i ] [ -t terminal ] [ name ... ]
DESCRIPTION
Ul reads the named files (or standard input if none are given) and translates occurrences of underscores to the sequence which indicates
underlining for the terminal in use, as specified by the environment variable TERM. The -t option overrides the terminal kind specified in
the environment. The file /etc/termcap is read to determine the appropriate sequences for underlining. If the terminal is incapable of
underlining, but is capable of a standout mode then that is used instead. If the terminal can overstrike, or handles underlining automati-
cally, ul degenerates to cat(1). If the terminal cannot underline, underlining is ignored.
The -i option causes ul to indicate underlining onto by a separate line containing appropriate dashes `-'; this is useful when you want to
look at the underlining which is present in an nroff output stream on a crt-terminal.
SEE ALSO
man(1), nroff(1), colcrt(1)
BUGS
Nroff usually outputs a series of backspaces and underlines intermixed with the text to indicate underlining. No attempt is made to opti-
mize the backward motion.
4th Berkeley Distribution May 7, 1986 UL(1)