Answer / amresh kar

Unix command has divided into internal and external, bcz
shell executes internal commands faster.if all the commands
are internal the shell will be large and not be more efficient.
The internal commands are only 56.

Give the command to display space usage on the UNIX file system.

6 Answers  

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How do you list the files in an UNIX directory while also showing hidden files?

4 Answers  

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which is the best book for learning unix and linux?

6 Answers  

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what is the time for incident, problem and change management tickets?

0 Answers   CGI,

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Name key files or directories on a UNIX system that should always be backed up?

1 Answers  

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What is the difference between > and >> operators?

6 Answers  

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why unix command can be divided into internal and external command

1 Answers   IBM,

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What is a daemon?

6 Answers  

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Telnet sometimes doesn't permit root logons,how will you then change a file writable only by root on a remote host?

1 Answers  

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In Unix inter process communication take place using?

3 Answers   TCS,

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What are each of the standard files and what are they normally associated with?

1 Answers   ITCO,

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What is a level 0 backup?

2 Answers   Atos Origin,

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