我想在程序中的第80列之后添加字符串和行号。我可以使用贪婪的匹配(.*)
来匹配一行中的所有内容并将其替换为\1 suffix
如果我只需要添加后缀。但是,如何填充第80列的空格/空格,然后添加string
,然后添加行号#
。当我使用sed -e "s/\(.*\)/\1 string/g" infile > outfile
时。我只能添加后缀,但不能在第80列之后添加,也不能添加行号。我通过unxutil在windows上使用sed,gawk。提前感谢你。
答案 0 :(得分:0)
awk '{$0=$0"suffix"NR}1' your_file
或
perl -pe 's/$/suffix$./g' your_file
注意:我假设您在说出80个字符时意味着结束
答案 1 :(得分:0)
GNU代码sed:
sed ':a s/^.\{1,79\}$/& /;ta;s/$/& suffix/;=' file|sed 'N;s/\(.*\)\n\(.*\)/\2 \1/'
答案 2 :(得分:0)
尝试:
perl -ple's{\A(.*)\z}{$1.(" "x(80-length($1)))." # $."}ex'
<强>更新强>
添加一些选项。
Usage: script.pl [-start=1] [-end=0] [-pos=80] [-count=1] <file> ...
script.pl
:
#!/usr/bin/env perl
# --------------------------------------
# Pragmatics
use v5.8.0;
use strict;
use warnings;
# --------------------------------------
# Modules
# Standard modules
use Getopt::Long;
use Data::Dumper;
# Make Data::Dumper pretty
$Data::Dumper::Sortkeys = 1;
$Data::Dumper::Indent = 1;
# Set maximum depth for Data::Dumper, zero means unlimited
local $Data::Dumper::Maxdepth = 0;
# --------------------------------------
# Configuration Parameters
# Command line arguments
my %Cmd_options = (
count => 1, # where to start the line counting
end => 0, # line to end on, zero means to end of file
pos => 80, # where to place the line number
start => 1, # which line to start on
);
my %Get_options = (
'count=i' => \$Cmd_options{ count },
'end=i' => \$Cmd_options{ end },
'pos=i' => \$Cmd_options{ pos },
'start=i' => \$Cmd_options{ start },
);
# conditional compile DEBUGging statements
# See http://lookatperl.blogspot.ca/2013/07/a-look-at-conditional-compiling-of.html
use constant DEBUG => $ENV{DEBUG};
# --------------------------------------
# Variables
# --------------------------------------
# Subroutines
# --------------------------------------
# Name: get_cmd_opts
# Usage: get_cmd_opts();
# Purpose: Process the command-line switches.
# Returns: none
# Parameters: none
#
sub get_cmd_opts {
# Check command-line options
unless( GetOptions(
%Get_options,
)){
die "usage: number_lines [<options>] [<file>] ...\n";
}
print Dumper \%Cmd_options if DEBUG;
return;
}
# --------------------------------------
# Main
get_cmd_opts();
while( my $line = <> ){
# is the line within the range?
if( $. >= $Cmd_options{start} && $Cmd_options{end} && $. <= $Cmd_options{end} ){
chomp $line;
my $len = length( $line );
printf "%s%s # %05d\n", $line, q{ } x ( $Cmd_options{pos} - $len ), $Cmd_options{count};
$Cmd_options{count} ++;
# else, just print the line
}else{
print $line;
} # end if range
} # end while <>