I need to read pairs of lines from a file and compare them. We can assume that the number of lines in the file is even. Can i do it in korn shell? (4 Replies)
This seems to be a question whose answer uses sed or awk.
For a file like:
a
b
c
d
e
How to swap the order of the line pairs, to end up with:
b
a
d
c
e
All lines from the original file need to wind up in the output file. (8 Replies)
I have a file that contains 87 lines, each with a set of coordinates (x & y). This file looks like:
1 200.3 -0.3
2 201.7 -0.32
...
87 200.2 -0.314
I have another file which contains data that was taken at certain of these 87 positions. i.e.:
37 125
42 175
86 142
where the first... (1 Reply)
Hi, I have multiple large files which consist of the below format:
I am trying to write an awk or sed script to remove all occurrences of the 00 record except the first and remove all of the 80 records except the last one.
Any help would be greatly appreciated. (10 Replies)
Hi
I need to order these lines from a txt file my file looks like this
IMSI ........................ 1234567890
APN ......................... INTERNET.COM
APN ......................... MMS.COM
APN ......................... WAP.COM
APN ......................... BA.COM
IMSI... (4 Replies)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hi,
I have a requirement where I need to combine two lines in a file based on first character of each line in a file.
Please find the sample content of the file below:
Code:
_______________________
5, jaya, male, 4-5-90, single
smart
6, prakash, male, 5-4-84, married
fair
7, raghavi,... (1 Reply)
Hi All,
i want to write a shell script read below file line by line and want to exclude the lines which contains empty value for MOUNTPOINT field.
i am using centos 7 Operating system.
want to read below file.
# cat /tmp/d5
NAME="/dev/sda" TYPE="disk" SIZE="60G" OWNER="root"... (4 Replies)
Discussion started by: balu1234
4 Replies
LEARN ABOUT MOJAVE
modperl::code
ModPerl::Code(3) User Contributed Perl Documentation ModPerl::Code(3)NAME
$class::Const - Perl Interface for $class Constants
SYNOPSIS CONSTANTS
EOF
my $groups = $data{$class};
for my $group (sort keys %$groups) {
print $fh <<"EOF";
":$group"
use $class::Const -compile qw(:$group);
The ":$group" group is for XXX constants.
EOF
for my $const (sort @{ $groups->{$group} }) {
print $fh "=head3 C<$class::$const>
";
}
}
print $fh "=cut
";
}
}
sub generate_constants_lookup_doc {
my ($data) = @_;
foreach my $class (sort keys %$Apache2::ConstantsTable) {
my $groups = $Apache2::ConstantsTable->{$class};
my $constants = [sort map { @$_ } values %$groups];
constants_lookup_code_doc($constants, $class, $data);
}
}
sub generate_constants_group_lookup_doc {
my ($data) = @_;
foreach my $class (sort keys %$Apache2::ConstantsTable) {
my $groups = $Apache2::ConstantsTable->{$class};
constants_group_lookup_code_doc($class, $groups, $data);
}
}
sub constants_group_lookup_code_doc {
my ($class, $groups, $data) = @_;
my @tags;
my @code;
while (my ($group, $constants) = each %$groups) {
$data->{$class}{$group} = [
map {
my @ifdef = constants_ifdef($_);
s/^($constant_prefixes)_?//o;
$seen_const{$class}{$_}++;
$_;
} @$constants
];
}
}
sub constants_lookup_code_doc {
my ($constants, $class, $data) = @_;
my (%switch, %alias);
%alias = %shortcuts;
my $postfix = lc $class;
my $package = $class . '::';
my $package_len = length $package;
my $func = canon_func(qw(constants lookup), $postfix);
for (@$constants) {
if (s/^($constant_prefixes)(_)?//o) {
$alias{$_} = join $2 || "", $1, $_;
}
else {
$alias{$_} ||= $_;
}
next unless /^([A-Z])/;
push @{ $switch{$1} }, $_;
}
for my $key (sort keys %switch) {
my $names = $switch{$key};
for my $name (@$names) {
my @ifdef = constants_ifdef($alias{$name});
push @{ $data->{$class}{other} }, $name
unless $seen_const{$class}{$name}
}
}
}
sub generate_exports {
my ($self, $c_fh) = @_;
require ModPerl::WrapXS;
ModPerl::WrapXS->generate_exports($c_fh); }
# src/modules/perl/*.c files needed to build APR/APR::* outside # of mod_perl.so sub src_apr_ext {
return map { "modperl_$_" } (qw(error bucket),
map { "common_$_" } qw(util log)); }
1; __END__
NAME
ModPerl::Code - Generate mod_perl glue code
SYNOPSIS
use ModPerl::Code ();
my $code = ModPerl::Code->new;
$code->generate;
DESCRIPTION
This module provides functionality for generating mod_perl glue code. Reason this code is generated rather than written by hand include:
consistency
thin and clean glue code
enable/disable features (without #ifdefs)
adapt to changes in Apache
experiment with different approaches to gluing
AUTHOR
Doug MacEachern
perl v5.18.2 2015-06-18 ModPerl::Code(3)