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Full Discussion: A variable is including the Carriage Return char...
Top Forums Shell Programming and Scripting A variable is including the Carriage Return char... Post 302522801 by mrreds on Monday 16th of May 2011 04:19:31 PM
Old 05-16-2011
A variable is including the Carriage Return char...
Hi all,

I'm reading a file with this layout:

First_Col Second_Col

The Second_Col has values as 1000, -1, 10, 43...

While reading the file I'm getting the second column value with awk command, but it is including the CR control char.

Code:
do
   item_saved=`echo $b | awk '{print $1}'`   #Get value ITEM_SAVED
   valu_saved=`echo $b | awk '{print $2}'`   #Get value VALU_SAVED
   valu_saved=`expr $valu_saved`
   .....

It is affecting my output in a new flat file (after validations).

Is there a way to remove this CR char from the string? converted to number using
Code:
`expr $valu_saved`

?

Thak you!
 

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LEARN ABOUT MOJAVE

nsd-checkconf

nsd-checkconf(8)                                                    nsd 3.2.12                                                    nsd-checkconf(8)

NAME

       nsd-checkconf - NSD configuration file checker.

SYNOPSIS

       nsd-checkconf [-v] [-h] [-o option] [-z zonename] [-s keyname] configfile

DESCRIPTION

       nsd-checkconf  reads  a  configuration  file. It prints parse errors to standard error, and performs additional checks on the contents. The
       configfile format is described in nsd.conf(5).

       The utility of this program is to check a config file for errors before using it in nsd(8) or zonec(8). This program can also be  used  for
       shell scripts to access the nsd config file, using the -o and -z options.

OPTIONS

       -v     After  reading  print  the  options  to  standard output in configfile format. Without this option, only success or parse errors are
              reported.

       -h     Print usage help information and exit.

       -o option
              Return only this option from the config file. This option can to be used in conjunction with the -z option.  The special value zones
              prints out a list of configured zones.

              This  option  is primarily used by nsdc to parse the config file from the shell. If the -z option is given, but the -o option is not
              given, nothing is printed.

       -s keyname
              Prints the key secret (base64 blob) configured for this key in the config file. Used to help shell scripts parse the config file.

       -z zonename
              Return the option specified with -o for zone 'zonename'.

              If this option is not given, the server section of the config file is used.  This option is primarily used by nsdc to parse the con-
              fig file from the shell.

              The -o, -s and -z option print configfile options to standard output.

FILES

       /etc/nsd3/nsd.conf
              default NSD configuration file

SEE ALSO

       nsd(8), nsdc(8), nsd.conf(5), nsd-notify(8), nsd-patch(8), nsd-xfer(8), zonec(8)

AUTHORS

       NSD was written by NLnet Labs and RIPE NCC joint team. Please see CREDITS file in the distribution for further details.

NLnet Labs                                                         jul 19, 2012                                                   nsd-checkconf(8)
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