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

1103

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Can you explain a little bit about command substitution?

1131

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Describe the zip/unzip command using gzip.

1176

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

1232

---

Explain ‘library functions’ with respect to unix commands?

1190

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

1208

---

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

1236

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What do chmod, chown, chgrp commands do?

1304

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

1239

---

Explain mount and unmount command.

1241

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What is the fork() system call?

950

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

856

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Explain the method of changing file access permission?

974

---

What are the pros of executing processes in the background?

888

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What is the ‘nohup’ in unix?

953

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