05-24-2010
Quote:
#!/bin/ksh
ls -l *\.edf| while read -r a a a a s a a a n
do
echo "[$s] [$n]"
done
On behalf of vgersh99. The "while read -r" statement reads each matching line from the "ls -l *\.edf" statement in turn. It places the results into environment variables called $a, $s, $n . $a is a variable to use unwanted fields, $s is the file size, $n is the file name. The clever bit of the script is that $n contains the whole filename whether or not it contains spaces or special characters. This is because the last field in a "read" statement is filled with any remaining characters from the input line. See "man read".
The square brackets in the output echo are not special syntax, they just help to show where each field starts and stops when testing the script.
Note the backslash in "ls -l *\.edf". This is good practice because unix is not MSDOS and a fullstop in a filename is just another character but it can have special meaning in a regular expression (which this isn't).
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