Shell Programming Topic Exercises

1. Write the shell script, calculate 1-100 's and;

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2. Write the shell script, ask for a number, and then calculate from 1 to the input number and, if the input number is less than 1 re-input until the correct number is entered;

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3. Write the shell script to copy all directories under the/root/directory (only one level) to the/tmp/directory;

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4. Write shell scripts, batch build user user_00, user_01, ... user_100 and all users belong to the Users group;

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5. Write a shell script that intercepts the first column in the line containing the keyword ' abc ' in the file Test.log (assuming the delimiter is ":"), then sorts the intercepted numbers (assuming the first column is a number) and prints out the columns with more than 10 repetitions;

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6. Write the shell script to determine whether the IP input is correct (IP rules are, N1.N2.N3.N4, where 1<n1<255, 0<n2<255, 0<n3<255, 0<n4<255).

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This article from "Samoyed sadness" blog, declined reprint!

Shell Programming Topic Exercises