Do you want to remove the entire line if they *begin with those
characters? If so, creating the following file, making it executable and
running it will do this.
#!/usr/local/bin/perl -ni
# convert.pl
# usage: ./convert.pl file1 file2 file3 ...
next if /^[; ]/;
next if /^.com/;
next if /\.(ROOT|GTLD)-/;
print;
the -n switch does what -p does, but does not print the line by default
I combined a few of the similar matches. You could write it in one big
(but harder to understand) regex if you wanted to.
hth
charles
On Wed, 13 Sep 2000, Chris S wrote:
> what if i have other strings in a file other than "NOT NULL" that i want to
> get rid of? can i still get away with one command or do i have to use a
> separate command for each string?
> in my file i want to get rid of all lines beginning with:
> ;
> blank space
> .com
> <all characters>.ROOT-
> <all characters>.GTLD-
>
> thanks for any advice.
>
> >From: rpjday <[EMAIL PROTECTED]>
> >On Mon, 11 Sep 2000, Dan Browning wrote:
> >
> > > what command do I use to substitute all occurences of a certain string
> >(say,
> > > "NOT NULL") with another arbitrary string, (e.g. "")? I've tried grep
> >and
> > > tr, but can't figure it out.
> >
> >perl -pi -e "s/NOT NULL/bill gates is a donut/g" <filename>
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