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5 $begingroup$ I have some questions about redshift. I think that the first two hang on the last two, but feel free to point out anything you think I should know. How do we know if an object is actually redshifted, and that we aren't just seeing the regular spectrum of the star? How can we tell the extent to which a star is redshifted? Do astronomers have a full baseline spectrum that they compare the measured spectrum against? Or do they just use the hydrogen spectrum since all stars are mostly hydrogen? the-sun distances redshift share | improve this question asked 9 hours ago Gimcrack Gimcrack

0 We have so many user ID locks from the front-end users. We need to provide a shell script to the user which they can run on OS level and unlock the ID themselves when the DBA is not present. The sys password needs to be decrypted during runtime for script run & encrypted after script executes successfully. (Ideally they should not see the password) We have multiple databases so the parameter has to be passed in the below manner only. Example syntax : ./tmp/unlock_user.sh user instance_name This is too much to ask. I know. If anyone can help, It will be great. OS : Generic Linux Database : 11gR2 oracle oracle-11g-r2 linux unix share asked 3 mins a