11-16-2012
Comparing to specific line in file bash script
Hi,
I have a value stored in x and I need to compare it to the numbers in every other line of a file. The file contains alternating lines of numbers and letters:
aaaa1111
AAAAAAAA
bbbb2222
BBBBBBBB
cccc3333
CCCCCCCC
I need to compare x to the numbers in every other line without the first four characters of that line. So I want to compare x to 1111, then to 2222, then 3333. This is to be the condition in an if statement:
if [ $x = (line 1 without first four characters) ]
or
if [ $x = (line 3 without first four characters) ]
I know I would have to use something along the lines of = $(sed something) or maybe cut, but I don't know how to reference the file by line.
Let me know if I need to be more clear. Thanks for any help!
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LEARN ABOUT DEBIAN
moosex::types::common::string
MooseX::Types::Common::String(3pm) User Contributed Perl Documentation MooseX::Types::Common::String(3pm)
NAME
MooseX::Types::Common::String - Commonly used string types
SYNOPSIS
use MooseX::Types::Common::String qw/SimpleStr/;
has short_str => (is => 'rw', isa => SimpleStr);
...
#this will fail
$object->short_str("string
with
breaks");
DESCRIPTION
A set of commonly-used string type constraints that do not ship with Moose by default.
o SimpleStr
A Str with no new-line characters.
o NonEmptySimpleStr
A Str with no new-line characters and length > 0
o LowerCaseSimpleStr
A Str with no new-line characters, length > 0 and no uppercase characters A coercion exists via "lc" from NonEmptySimpleStr
o UpperCaseSimpleStr
A Str with no new-line characters, length > 0 and no lowercase characters A coercion exists via "uc" from NonEmptySimpleStr
o Password
o StrongPassword
o NonEmptyStr
A Str with length > 0
o LowerCaseStr
A Str with length > 0 and no uppercase characters. A coercion exists via "lc" from NonEmptyStr
o UpperCaseStr
A Str with length > 0 and no lowercase characters. A coercion exists via "uc" from NonEmptyStr
o NumericCode
A Str with no new-line characters that consists of only Numeric characters. Examples include, Social Security Numbers, PINs, Postal
Codes, HTTP Status Codes, etc. Supports attempting to coerce from a string that has punctuation in it ( e.g credit card number
4111-1111-1111-1111 ).
SEE ALSO
o MooseX::Types::Common::Numeric
AUTHORS
Please see:: MooseX::Types::Common
perl v5.14.2 2012-06-14 MooseX::Types::Common::String(3pm)