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So I'm trying to read datafile into an array, with each line representing one variable in the array. I'm successful at first but somehow it keeps getting erased.


i=0
grep '.*' datafile | while...

Right on the money. That was exactly the problem. I simply copied the contents of the file, created a new one in emacs and pasted it in there, and then renamed it to the original. Then all of a...

I keep trying to append some astrix to the end of a line, but it keeps overwriting at the front of the line.

These are the originals


Fred Fardbarkle:674-843-1385:20 Parak Lane, Duluth, MN...

It's a regular expression

^ means at the beginning of a line in some data
. means Any character
\{42\} means 42 of those any characters

If that . was an A or a B, \{42\} would mean 42 A's or...

I don't know, this is a chapter on grep, so everything has to be done with grep. we are getting to awk and sid in the next chapter. But remember, I don't need the lines with 6 figures, I need the...

1. The problem statement, all variables and given/known data:

I have to grep a data file called datebook.txt. The last information in each line is a salary. I have to grep all the lines which...