What shell’s wild-card is used to match any number of characters including none ?

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What shell’s wild-card is used to match a single character ?

A. [!ijk] B. [ijk] C. ? D. *...

Which of the following is invalid filename ?

A. shutry B. TRY C. trial D. None of the above...

Which command is used to assign only read permission to all three categories of the file ‘note’ ?

A. chmod go+r note B. chmod a-rw C. chmod ugo=r note D. chmod u+r,g+r,o-x note...

Who founded the Linux Kernel ?

A. Bill Gates B. Ben Thomas C. Richard Stallman D. Linus Torvalds...

Which of the following commands is used to display the filenames in multiple columns ?

A. ls B. ls -1 C. ls -x D. lc...