05-08-2009
Sed or Awk to remove specific lines
I have searched the forum for this - forgive me if I missed a previous post.
I have the following file:
blah blah blah
blah blah blah
blah blah blah
blah blah blah
blah blah blah
alter table "informix".esc_acct add constraint (foreign key (fi_id)
references "informix".fi constraint "informix".fk_esc_acct_from_fi);
EOF
I want to use sed or awk to remove the 'alter table' statement which in this example is two lines, it can be three or even four lines. I know how to remove one line with sed but I do not know how to tell sed "remove the line with the words 'foreign key' and continue removing lines up to and including the first ';' that you run into". These lines do not always appear at the end of the file. I am using KSH on a Solaris 10 box.
Thanks for any help,
Mike
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LEARN ABOUT DEBIAN
time::duration::parse
Time::Duration::Parse(3pm) User Contributed Perl Documentation Time::Duration::Parse(3pm)
NAME
Time::Duration::Parse - Parse string that represents time duration
SYNOPSIS
use Time::Duration::Parse;
my $seconds = parse_duration("2 minutes and 3 seconds"); # 123
DESCRIPTION
Time::Duration::Parse is a module to parse human readable duration strings like 2 minutes and 3 seconds to seconds.
It does the opposite of duration_exact function in Time::Duration and is roundtrip safe. So, the following is always true.
use Time::Duration::Parse;
use Time::Duration;
my $seconds = int rand 100000;
is( parse_duration(duration_exact($seconds)), $seconds );
FUNCTIONS
parse_duration
$seconds = parse_duration($string);
Parses duration string and returns seconds. When it encounters an error in a given string, it dies an exception saying "Unknown
timespec: blah blah blah". This function is exported by default.
AUTHOR
Tatsuhiko Miyagawa <miyagawa@bulknews.net>
COPYRIGHT
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Some internal code is taken from Cache and Cache::Cache modules on CPAN.
SEE ALSO
Date::Manip, DateTime::Format::Duration, <http://use.perl.org/~miyagawa/journal/30310>
perl v5.10.0 2008-06-02 Time::Duration::Parse(3pm)