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In Unix, the command to enable execution permission for file "mylife" by all is_____

  1. Chmod ugo+ X mylife
  2. Chmod a + X mylife
  3. Chmod + X mylife
  4. All of the above
in Others by Veteran (105k points)
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1 Answer

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ans is D 

all three commands are used to enable execution permission chmod (change mode) X for execution

ugo (user group other) and + for add

a(all) and + for add

only + for all

refer https://kb.iu.edu/d/abdb

by Boss (48.8k points)

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