Name the various commands that are used for the user information in unix.

1145

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Can you explain a little bit about command substitution?

1171

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Describe the zip/unzip command using gzip.

1241

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Explain the terms ‘system calls’ and ‘library functions’ with respect to unix commands?

1276

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Explain ‘library functions’ with respect to unix commands?

1227

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What is the command to find hidden files in the current directory?

1247

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What is the unix command to confirm a remote host is alive or not?

1291

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What do chmod, chown, chgrp commands do?

1366

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What is the command to find maximum memory taking process on the server?

1273

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Explain mount and unmount command.

1287

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What is the fork() system call?

991

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What are the possible return values of kill() system call?

898

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Explain the method of changing file access permission?

1018

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What are the pros of executing processes in the background?

922

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What is the ‘nohup’ in unix?

1003

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