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Help with su

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Help with su.
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Old Unix and Linux 02-26-2009   -   Original Discussion by Taranjeet Singh
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It is very difficult to redirect a password into su and this is intentional. Storing passwords and automatically logging into accounts is very dangerous and often a bad idea.

sudo can be configured to login without passwords, it is very flexible; but be careful to only give such permissions in a very limited and specific way.