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"The standard output from a command enclosed in parentheses preceded by 
a dollar sign ( $( ) ) or a pair of grave accents ( ` ` ) may be used 
as part or all of a word; trailing new-lines are removed. In the second 
(obsolete) form, the string between the quotes is processed for special 
quoting characters before the command is executed (see Quoting  below). 
The command substitution  $( cat file )  can be replaced by the 
equivalent but faster  $( <file )". 

-- 
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Jerry Feldman <[hidden email]> 
Boston Linux and Unix 
PGP key id: 537C5846 
PGP Key fingerprint: 3D1B 8377 A3C0 A5F2 ECBB  CA3B 4607 4319 537C 5846 
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