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/etc/profile
$HOME/.profile
sh
.
The /etc/profile file allows the system administrator to perform services for the entire user community.
The default /etc/profile performs the following routine tasks (among others):
It is also not unusual for /etc/profile to execute special actions for the root login or the su command.
Computers running outside the U.S. Eastern time zone should have the line
. /etc/TIMEZONEincluded early in /etc/profile [see timezone(F)].
PATH=/u95/bin:$PATH POSIX2=on
This sets the logged in user's execution environment to conform to X/Open Interface Definitions, Version 4 Issue 2.
The PATH setting causes command searching to begin with /u95/bin so that any commands found there are executed rather than other versions found in standard directories appearing later in the PATH string. For example, entering sh on the command line with PATH set as above executes /u95/bin/sh rather than /usr/bin/sh (/u95/bin/sh is the version of the Korn Shell that complies with X/Open Interface Definitions, Version 4 Issue 2; see ksh(C)).
The setting of the POSIX2 environment variable changes the behavior of many standard commands to match the behavior specified in X/Open Interface Definitions, Version 4 Issue 2.
# Make some environment variables global export MAIL PATH TERM # Set file creation mask umask 022 # Tell me when new mail comes in MAIL=/var/mail/$LOGNAME # Add my bin directory to the shell search sequence PATH=$PATH:$HOME/bin # Set terminal type TERM=${L0:-u/n/k/n/o/w/n} while : do if [ -f ${TERMINFO:-/usr/share/lib/terminfo}/?/$TERM ] then break elif [ -f /usr/share/lib/terminfo/?/$TERM ] then break else echo "invalid term $TERM" 1>&2 fi echo "terminal: \c" read TERM done # Set the erase character to backspace stty erase '^H' echoe