Friends,
I am trying to write a simple script that I could use while editting files with vi. One of the things I like about vi is that you can do things like :1,$ !
program. Here's a demostration of what I want to be able to do ...
bash-2.05b$ vi junk
NOTES
doc
backup
notes
scripts
cpio_out
bashrc
~
~
~
:1,$ !sort
backup
bashrc
cpio_out
doc
notes
NOTES
scripts
:wq
In the above example I used sort to modify my file. I want to be able to do this with this script ...
bash-2.05b$ cat twc
#!/usr/bin/perl -w
use strict;
my $file = shift;
if ( !defined( $file ) ) {
print "usage: $0 <dir|file>\n";
exit 0;
}
if ( ! -e $file ) {
print "#$file\n";
} else {
print "$file\n";
}
... but when I do something like this ...
bash-2.05b$ vi junk
backup
bashrc
cpio_out
doc
notes
NOTES
scripts
~
~
~
:1,$ !./twc
... I get this ...
usage: ./twc <dir|file>
How should I be handling the input in my Perl script?
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