Hi guys, I need some help from you.
I know it's lame to ask for help for college, but for oracle databases we have a professor that really doesn't know how to explain anything.
We are learning it all theoretically and nothing practically and now he gave us a code to annotate. I would be very grateful if you could help me with explaining this code with the parts that I don't understand.
I won't be lazy and just copy paste afterwards, I'm really interested in this, and I'm asking for your help,

Thank you very much.
Here are some thing that I don't get and need help with, so if you could explain it for me:

Case 1:

umask 0027

Case 2:

mkdir -p /u01/app/oracle/admin/jobs/adump

Case 3:

umask ${OLD_UMASK}

Case 4:

/u01/app/oracle/product/11.2.0/db_1/bin/sqlplus /nolog @/u03/labfiles/lab1/JOBS.sql

Case 5:

set verify off
  ACCEPT sysPassword CHAR PROMPT 'Enter new password for SYS: ' HIDE
  ACCEPT systemPassword CHAR PROMPT 'Enter new password for SYSTEM: ' HIDE

Case 6:

host /u01/app/oracle/product/11.2.0/db_1/bin/orapwd file=/u01/app/oracle/product/11.2.0/db_1/dbs/orapwJOBS force=y

Case 7:


Once again, Thank you very much in advance,

Best regards,


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None of those are generic Oracle syntax.

Those are either OS or environment setting commands.

If you are not understanding anything it is you, not the professor to blame.

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