Answer Posted / sreekanth turuka

grep -l "*.dat" /dir1/dir2/dir3 | rm

How do you know which shell I am using?

987

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on “sed” command EmpData(Sample Database) 1122|j.b. saxena |g.m. |account |12/12/52|6000 2233|n.k. gupta |d.g.m |sales |31/12/40|9000 4545|anil agarwal |director |account |06/07/47|7500 5656|lalit choudhury |executive|marketing|07/09/50|5000 1265|chanchal singhvi|g.m. |admin |12/09/63|6000 0110|shyam saksena |chairman |marketing|12/12/43|8000 5566|jai sharma |director |account |23/12/89|7000 7733|jayant |d.g.m |sales |29/02/70|6000 1. From the above database substitute the delimiter of first 3 lines with “ : “ 2. From the above database substitute the delimiter with “ : ” 3. Insert the string “ XYZ Employees” in the first line. 4. Store the lines pertaining to the directors, d.g.m and g.m into three separate files. 5. Using address store first 4 lines into a file Empupdate. 6. Find the pattern “account” in the database and replaces that with “accounts”. 7. Select those lines which do not have a pattern “g.m”. 8. Insert a blank line after every line in the database.

3047

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Explain about stdin, stdout and stderr?

1105

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Using set -A write a script to print the output of the ls command in 5 columns with two spaces between each column. Pretend that ls does not have multicolumn output.

2425

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What is difference between bash and shell?

1011

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What does the sh command do?

1028

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What is echo in shell?

1050

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Explain about non-login shell files?

1134

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Explore about environment variables?

983

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What are scripts in psychology?

992

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What are the different types of shell scripting?

1033

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What are the various stages of a linux process it passes through?

1087

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How do I start a shell script?

1126

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What does egrep mean?

913

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how to print the matrix form of 2-d, 3-d arrays in unix c shell scripts ?

4020

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