topic Re: scripting in Operating System - HP-UX

scripting

Donald Thaler — Tue, 29 Jun 2004 14:10:58 GMT

what does the following script do??

while read -r xx
do
export $xx
done < /u01/scripts/0params.dat
**script continues**
I know that the 0param.dat is a file that has default values for the oracle_home/oracle_sid.

Re: scripting

Sundar_7 — Tue, 29 Jun 2004 14:16:58 GMT

/u01/scripts/0params.dat file probably contains some variable names.

The while loop reads one variable at a time in read-only mode and export the variable so that it can be accessed by the other shells.

Re: scripting

RAC_1 — Tue, 29 Jun 2004 14:17:24 GMT

It read (in raw format) the contents of the file /u01/scripts/0params.dat and exports the varibles. (so as to make them available to sub-shells.

man sh-posix for details.

Anil

Re: scripting

Rodney Hills — Tue, 29 Jun 2004 14:17:50 GMT

0param.dat has shell variables that are set and exported. This is done by reading each line from the file and executing the "export" command.

HTH

-- Rod Hills