scripting

[Donald Thaler]

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.

[Sundar_7 · Accepted solution]

/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.

[RAC_1]

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

[Rodney Hills]

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