[ILUG] Removing Txt file lines using Linux Scripts

[Burke, Gary : GIG IS&T]

]> Can any one tell me ,  how to remove  some 5-6 lines
]> from a big text file using linux scripts
] 
] ed vi sed tail head awk perl python grep. And I'm sure I missed
] another dozen.

I can think of a few not very nice ways that may work, but I'm sure there
are better ways.

Firstly, if you know the exact text of the lines you want to remove, then
try something like

cat filename | grep -v "first line" | grep -v "second line" | .... | grep -v
"last line" > newfilename

But that's horrible.  Another way would be to use vi or emacs.  If you know
which lines they will be all the time, then you can store the keystrokes you
requires in a file.  I know using Emacs you can use ^Q and a character (like
^X) and it will put a ^X into the buffer instead of Email trying to
understand it.  I'm sure this is possible in vim.  So, you would have a file
like...

^N^N^N^N^N^K^K^K^K^K^K^X^S^X^C

and use a command line

emacs filename < keystrokesfile


Though that is also very very messy.

There are probably much better ways, and I'm sure someone will come up with
a few better ones for you.



Gary
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