Why error message is seen at terminal in spite of having use

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Reference no: EM131876557

Problem

1. Explain why the error message is seen at the terminal in spite of having used the 2> symbol:

$ cat < foo 2>bar ksh: cannot open foo: No such file or directory

2. How do the commands wc foo and wc < foo differ? who opens the file in each case?>

3. You want to concatenate two files, foo1 and foo2, but also insert some text after foo1 and before foo2 from the terminal. How will you do this?

Reference no: EM131876557

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