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The most important settings is possible to set in the global shell
initialization files for login shells: /etc/csh.login for tcsh and
/etc/profile for bash.
Exceptions that do not get the right path from these files are rsh
commands, ssh commands, menu items from X window manager that do not
explicitly start login shell, commands invoked from inittab, cron
jobs, daemons jobs like magic filters started from lprd, WWW CGI
scripts, and so on.
If the path is set in /etc/csh.cshrc, the path is right even when rsh
or ssh execute command in remote machine with account using
tcsh/csh. However, it is not possible to set path if account uses
bash/sh.
It is possible to combine path setting to one file, for example to a
file /etc/environment-common. There we write:
${EXPORT}PATH${EQ}/bin:/usr/bin:/sbin:/usr/sbin:/usr/bin/X11:/usr/local/bin:/usr/games:.
This can be used from /etc/csh.login (for tcsh and csh)
set EQ=" " set EXPORT="setenv " source /etc/environment-common
And from /etc/profile (for bash, doesn't work for ordinary sh)
EQ='=' EXPORT="export " . /etc/environment-common
And from /etc/environment (for XDM)
EQ="=" EXPORT="export " . /etc/environment-common
This strategy works mostly but ssh will complain of the lines in
/etc/environment (and defined environment variables EQ and
EXPORT). And still, rsh commands executed with bash won't get this
path.
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