What does wc command do in unix?
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What is the command can be run to remove all the rules in an iptable table?
What is unix finger command?
You have a tab delimited file called phonenos and want to change each tab to four spaces. What command can you use to accomplish this?
How do I check memory usage on linux?
What is df command in unix?
Explain the free command.
1. Why "d" is postfix in almost every service name of Linux like httpd, dhcpd? 2. how to restrict su & ssh services for some users? 3. how can we configure a default gateway for 10 n/w cards in a server?
How do I clear my run history?
What does sh do in linux?
Is makefile a shell script?
How do I run whois command?
How often do you use grep command and how in Linux operating system?