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тАО05-05-2003 07:18 PM
тАО05-05-2003 07:18 PM
What does "-" implies in the .profile path??
PATH=$HOME/bin:${PATH:-/usr/bin:.}
Removing the "-" will cause bad substitution.
Why Tru64 have its part of the PATH to be substitute as ${PATH:-/usr/bin:.}
Any implication if I move the . current dir. to outside the curly bracket??
PATH=$HOME/bin:${PATH:-/usr/bin:.}
Removing the "-" will cause bad substitution.
Why Tru64 have its part of the PATH to be substitute as ${PATH:-/usr/bin:.}
Any implication if I move the . current dir. to outside the curly bracket??
tyl
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тАО05-05-2003 11:16 PM
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тАО05-05-2003 11:25 PM
тАО05-05-2003 11:25 PM
Re: Tru64 v5.1 Rev.732 .profile $PATH question
The :- performs a conditional substitution. See sh(1b):
${ variable:-string }
If the variable is set and is not null, substitute the value of variable in place of this expression. Otherwise, replace this expression with the value of string.
In the .profile the conditional subsitution is used to generate /usr/bin:. if PATH has not yet been set.
${ variable:-string }
If the variable is set and is not null, substitute the value of variable in place of this expression. Otherwise, replace this expression with the value of string.
In the .profile the conditional subsitution is used to generate /usr/bin:. if PATH has not yet been set.
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