Bash to verify each line in input for specific pattern Post: 302997619

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Top Forums Shell Programming and Scripting Bash to verify each line in input for specific pattern Post 302997619 by RavinderSingh13 on Wednesday 17th of May 2017 11:10:39 AM

05-17-2017

Moderator

Hello cmccabe,

Still not 100% sure, could you please try following and let me know if this helps you.

Code:

awk 'FNR==1 && /found expected header/{VAL++} FNR==2 && /found expected order of fields/{VAL++} FNR==3 && /R_Index is a number/{VAL++} FNR==4 && /PopFreqMax is valid/{VAL++} FNR==5 && /Quality is a character/{VAL++} FNR==6 && /HGMD and Sanger are valid/{VAL++} END{if(VAL==6){print FILENAME " is verified."}}'  Input_file*

You could mention in above as file* if you have only files with digits in them else you could change the regex to file[0-9] etc depending upon your files.
EDIT: Adding a non-one liner for of solution too successfully now.

Code:

awk 'FNR==1 && /found expected header/{
                                        VAL++
                                     }
     FNR==2 && /found expected order of fields/{
                                                VAL++
                                              }
     FNR==3 && /R_Index is a number/{
                                        VAL++
                                   }
     FNR==4 && /PopFreqMax is valid/{
                                        VAL++
                                   }
     FNR==5 && /Quality is a character/{
                                        VAL++
                                      }
     FNR==6 && /HGMD and Sanger are valid/{
                                                VAL++
                                         }
     END{
                if(VAL==6){
                                print FILENAME " is verified."
                          }
        }
    '   Input_file

Thanks,
R. Singh

Last edited by RavinderSingh13; 05-17-2017 at 12:33 PM..

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LEARN ABOUT POSIX

libbash

LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME

     libbash -- A bash shared libraries package.

DESCRIPTION

     libbash  is  a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may
     want to load and use in scripts of your own.

     It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries.

     Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1).  A bash shared library that can be  loaded
     using
     ldbash(1) must answer 4 requirments:

     1.     It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash).

     2.     It must contain a line that begins with '#EXPORT='.  That line will contain (after the '=') a list of functions that the library
	    exports.  I.e. all the function that will be usable after loading that library will be listed in that line.

     3.     It must contain a line that begins with '#REQUIRE='.  That line will contain (after the '=') a list of bash libraries that are
	    required for our library.  I.e. every bash library that is in use in our bash library must be listed there.

     4.     The library must be listed (For more information, see ldbashconfig(8)).

   Basic guidelines for writing library of your own:
     1.     Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions.

     2.     Try to declare all variables intended for internal use as local.

     3.     Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with:
		  __<library_name>_
	    For example, internal function myfoosort of hashstash library should be named as
		  __hashstash_myfoosort
	    This helps to avoid conflicts in global name space when using libraries that come from different vendors.

     4.     See html manual for full version of this guide.

AUTHORS

     Hai Zaar <haizaar@haizaar.com>
     Gil Ran <ril@ran4.net>

SEE ALSO

     ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1)

Linux								       Epoch								     Linux

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