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# 1  
Old 05-02-2004
Question for school quiz

I have these questions for my unix class that I can't figure out because I missed a couple of days. They are for a quiz we took last week so by answering the questions you are not bettering my grade or doing my homework. I just want to understand was the answers. My teacher is really bad at explaining things.

1. Matcha line containing the assignment of a value to a legal shell variable in grep.

2. Match a word containing a repeating sequence of characters, with one or more characters in between, in grep, e.g., match "abcxyabc" or "xax", but not "abcd" or "aa".

3. Exchange the second and third words on a line with at least 4 words in sed, leaving the rest unchanged, e.g., "hi there joe kool" becomes "hi joe there kool", but "hi there joe" is unchanged.

4. Match lines containing one or more letters immediately followed by one or more digits in grep, e.g., match "abc123" or "a7" but not "az-12".

5. Match lines containing a repeating sequence of letters followed at any distance by one or more digits in grep, e.g., match "axax123" or "aaxyz7" but not "az12" in grep.
# 2  
Old 05-02-2004
The rules of the forum are clear.


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Test Your Knowledge in Computers #72
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The 'Unix philosophy' is a computer design philosophy based on creating small, modular utilities that do one thing and do them well.
True or False?

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