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.

How are devices represented in UNIX?

2 Answers  

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process id for kernell process?

4 Answers   TCS,

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How do you create special files like named pipes and device files?

1 Answers   Wipro,

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How to remove weird filenames?

1 Answers  

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win 3.1 is a

0 Answers   TISL,

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. Using sed and grep, write a command which lists files and directories with following properties: (i) created in 1999 (ii) with user's as owner and group

0 Answers  

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What are the read or write or execute bits on a directory mean?

2 Answers  

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What is the main advantage of creating links to a file instead of copies of the file?

5 Answers   Cisco, ING,

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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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virtual terminal protocol is an example of which layer and works with which layer?

1 Answers   DOEACC, Virtusa,

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How to put a job in background & bring it to foreground?

3 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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