Re: Speedup of display of long and truncated lines

[Gregory Heytings]

> > > I didn't yet look at C-v/M-v, mainly because I don't have examples of 
> > > files with long lines that have enough long lines to justify movement 
> > > by window-full.  (I could, of course, produce such files myself, but 
> > > the question is: do such files exist in Real Life, enough to make the 
> > > scrolling commands important in these cases?  Examples of such files, 
> > > if they exist, are welcome.)
> >
> > Yes, such files exist in Real Life.  An example are database dumps, in 
> > which you can have hundreds of very long lines.
>
> Thanks, I'd appreciate any pointers to where I could download examples 
> of such files.

I cannot share such an example myself alas, the real-life databases I have 
access to contain business-sensitive data.  But you can easily create a 
similar file with the following script.  Its two parameters are the number 
of tables in the database and the number of elements in each table.  100 
and 10000 are a good starting point (for what is still a small database).

#!/bin/bash
for i in $(seq 1 $1)
do
  echo -n "INSERT INTO TABLE_$i VALUES "
  for j in $(seq 1 $2)
  do
    echo -n "(10,'100','QWERTY','Foo Bar Baz',50,4852,$j)"
    (($j == $2)) && echo -n ';' || echo -n ','
  done
  echo
done