What is “chmod” command?

1116

---

Which command is used to find whether the system is 32 bit or 64 bit?

1094

---

Which unix command lists files/folders in alphabetical order?

1693

---

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

1040

---

Can you explain a little bit about command substitution?

1075

---

Describe the zip/unzip command using gzip.

1124

---

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

1171

---

Explain ‘library functions’ with respect to unix commands?

1135

---

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

1158

---

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

1164

---

What do chmod, chown, chgrp commands do?

1237

---

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

1171

---

Explain mount and unmount command.

1169

---

What is the fork() system call?

900

---

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

807

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