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Top Forums UNIX for Beginners Questions & Answers Print Post 303030749 by RudiC on Friday 15th of February 2019 03:29:35 AM
Old 02-15-2019
ksh comes in (at least) two versions, and the two OSes you mentioned seem to used different ones as their default. Having said this, man ksh usually helps. see below quotations.

Quote:
Originally Posted by big123456
...
Code:
 export pubkey=$(cat ~/.ssh/id_rsa.pub)

Quote:
export [ -p ] [ name[=value] ] ...
... the given names are marked for automatic export to the environment of subsequently-executed commands.
Quote:
Command Substitution.
The standard output from a command list enclosed in parentheses preceded by a dollar sign ( $(list) ), or in a brace group preceded by a dollar sign ( ${ list;} ), or in a pair of grave accents (``) may be used as part or all of a word; ...
So - a variable called pubkey is - by "command substitution" - assigned the stdout of a cat command and marked for export.
Quote:
Code:
print "from=\"$host_ad\",no-port-forwarding $pubkey"

...
Quote:
print [ -CRenprsv ] [ -u unit] [ -f format ] [ arg ... ]
With no options or with option - or --, each arg is printed on standard output. ...
So - you'll have something like
Code:
from="",no-port-forwarding ssh-rsa AAAA...

on your stdout, usually your screen.
Last edited by RudiC; 02-15-2019 at 04:35 AM..
 

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