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Full Discussion: Find matching file in bash with variable file names but consisent prefixs
Top Forums Shell Programming and Scripting Find matching file in bash with variable file names but consisent prefixs Post 302983949 by Don Cragun on Tuesday 18th of October 2016 06:21:33 PM
Old 10-18-2016
Filename expansion doesn't happen inside double-quotes or on assignments. Try changing:
Code:
    file1="/home/cmccabe/Desktop/comparison/final/${file1%%_*.txt}_*.vcf"  # look for matching file

to:
Code:
    file1=$(printf '%s\n' "/home/cmccabe/Desktop/comparison/final/${file1%%_*.txt}_"*.vcf) # look for matching file

Note that the asterisk that is being used as a filename matching character has been moved out of the quoted portion of the string, and the expansion is done in an argument to a utility (printf in this case) instead of in a string being assigned to a variable. Without the command substitution, you would be assigning a literal asterisk to the variable instead of expanding it to a pathname of an existing file (or files).
Last edited by Don Cragun; 10-18-2016 at 09:25 PM.. Reason: More clearly show changes.
This User Gave Thanks to Don Cragun For This Post:
cmccabe
 

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LEARN ABOUT CENTOS

bashbug

BASHBUG(1)						      General Commands Manual							BASHBUG(1)

NAME

       bashbug - report a bug in bash

SYNOPSIS

       bashbug [--version] [--help] [email-address]

DESCRIPTION

       bashbug	is  a shell script to help the user compose and mail bug reports concerning bash in a standard format.	bashbug invokes the editor
       specified by the environment variable EDITOR on a temporary copy of the bug report format outline. The user must fill  in  the  appropriate
       fields  and  exit  the  editor.	 bashbug  then	mails the completed report to bug-bash@gnu.org, or email-address.  If the report cannot be
       mailed, it is saved in the file dead.bashbug in the invoking user's home directory.

       The bug report format outline consists of several sections.  The first section provides information about the  machine,	operating  system,
       the  bash  version, and the compilation environment.  The second section should be filled in with a description of the bug.  The third sec-
       tion should be a description of how to reproduce the bug.  The optional fourth section is for a proposed fix.  Fixes are encouraged.

ENVIRONMENT

       bashbug will utilize the following environment variables if they exist:

       EDITOR Specifies the preferred editor. If EDITOR is not set, bashbug defaults to emacs.

       HOME   Directory in which the failed bug report is saved if the mail fails.

       TMPDIR Directory in which to create temporary files and directories.

SEE ALSO

       bash(1)

AUTHORS

       Brian Fox, Free Software Foundation
       bfox@gnu.org

       Chet Ramey, Case Western Reserve University
       chet@po.cwru.edu

GNU Bash-4.0							   1998 July 30 							BASHBUG(1)
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