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Top Forums Shell Programming and Scripting Touch file inside directory referenced by wild card. Post 303045769 by RudiC on Sunday 12th of April 2020 06:07:19 PM
Old 04-12-2020
Why you are piping touch's stdout (which is empty) into ls's stdin (which doesn't require any) into echo's(which doesn't either)?



If you're sure there is only either one or the other, try

Code:
touch $(echo [Oo]racle/mymac/)file.tmp

echo is preferred to ls here as it is a shell (here: bash) builtin.


EDIT: tricky use of bash's "brace expansion" if both dir versions exist:
Code:
touch {O..o..32}racle/mymac/file.tmp


Last edited by RudiC; 04-12-2020 at 07:12 PM..
 

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Touch(3pm)						User Contributed Perl Documentation						Touch(3pm)

NAME
File::Touch - update access and modification timestamps, creating nonexistent files where necessary. SYNOPSIS
use File::Touch; @file_list = ('one.txt','../two.doc'); $count = touch(@file_list); use File::Touch; $reference_file = '/etc/passwd'; $touch_obj = File::Touch->new( reference => $reference_file, no_create => 1 ); @file_list = ('one.txt','../two.doc'); $count = $touch_obj->touch(@file_list); DESCRIPTION
Here's a list of arguments that can be used with the object-oriented contruction: atime_only => [0|1] If nonzero, change only the access time of files. Default is zero. mtime_only => [0|1] If nonzero, change only the modification time of files. Default is zero. no_create => [0|1] If nonzero, do not create new files. Default is zero. reference => $reference_file If defined, use timestamps from this file instead of current time. Default is undefined. atime => $time If defined, use this time (in epoch seconds) instead of current time for access time. mtime => $time If defined, use this time (in epoch seconds) instead of current time for modification time. Examples Update access and modification times, creating nonexistent files use File::Touch; my @files = ('one','two','three'); my $count = touch(@files); print "$count files updated "; Set access time forward, leave modification time unchanged use File::Touch; my @files = ('one','two','three'); my $day = 24*60*60; my $time = time() + 30 * $day; my $ref = File::Touch->new( atime_only => 1, time => $time ); my $count = $ref->touch(@files); print "$count files updated "; Set modification time back, update access time, do not create nonexistent files use File::Touch; my @files = ('one','two','three'); my $day = 24*60*60; my $time = time() - 30 * $day; my $ref = File::Touch->new( mtime => $time, no_create => 1 ); my $count = $ref->touch(@files); print "$count files updated "; AUTHOR
Nigel Wetters Gourlay (nwetters@cpan.org) COPYRIGHT
Copyright (c) 2001,2007,2009 Nigel Wetters Gourlay. All Rights Reserved. This module is free software. It may be used, redistributed and/or modified under the same terms as Perl itself. perl v5.10.0 2009-07-25 Touch(3pm)
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