If you want to set a variable for one command only, you can always write the variable setting first,
immediately followed by the
simplecommand (don't write any
;
after the assignment). This will result in the variable being set for that command only, but keeping the old value (if it had one) after the command has been executed. As an example, if you execute the code
MANPATH=/usr/man:/usr/local/man man test
will only look for the manual for
test
in directories
/usr/man
and
/usr/local/man
. This regardless of what value
MANPATH
had before the call.
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