using regex to select line matches

[nadabadan]

Hi,
How do you select all lines that don't start with a particular
word? For example,

^[^d].*$

selects all lines that doesn't start with the letter d. But how I
select all lines that doesn't start with the word "date". I tried
^[^date].*$ but this selects all lines that doesn't start with d, a,
t or e.

- Nada

 

[Steven M. O'Neill]

Hi,
How do you select all lines that don't start with a particular
word? For example,

^[^d].*$

selects all lines that doesn't start with the letter d. But how I
select all lines that doesn't start with the word "date". I tried
^[^date].*$ but this selects all lines that doesn't start with d, a,
t or e.

Like this?

while (<>) {
next if /^date/;
#do other stuff
}

 

[Gunnar Hjalmarsson]

How do you select all lines that don't start with a particular
word? For example,

^[^d].*$

selects all lines that doesn't start with the letter d. But how I
select all lines that doesn't start with the word "date". I tried
^[^date].*$ but this selects all lines that doesn't start with d, a,
t or e.

For most practical purposes, Steven's solutions is probably sufficient.
This is a regex that may be a more direct answer to your question:

/^(?!date)/

Please read about "Extended Patterns" in "perldoc perlre".