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Top Forums Shell Programming and Scripting Find common files between two directories Post 302947630 by jim mcnamara on Friday 19th of June 2015 04:07:27 PM
Old 06-19-2015
Example: you have to directories a and b

Use the comm command on the output of ls:

Code:
comm -12 <(ls a) <(ls b)

This works in modern shells, the <(ls a) thing is called process substitution. comm -12 means show only entries that are the same. Play with changing the options for comm: -1 -2 -3 and see. The example is bash syntax.

Last edited by jim mcnamara; 06-19-2015 at 05:12 PM..
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deleg_proc(n)						       Interpreter utilities						     deleg_proc(n)

__________________________________________________________________________________________________________________________________________________

NAME
deleg_proc - Creation of comm delegates (procedures) SYNOPSIS
package require Tcl 8.3 package require interp::delegate::proc ?0.2? ::interp::delegate::proc ?-async? name arguments comm id _________________________________________________________________ DESCRIPTION
This package provides a single command for the convenient creation of procedures which delegate the actual work to a remote location via a "channel" created by the package comm. API
::interp::delegate::proc ?-async? name arguments comm id This commands creates a procedure which is named by name and returns its fully-qualified name. All invokations of this procedure will delegate the actual work to the remote location identified by the comm channel comm and the endpoint id. The name of the remote procedure invoked by the delegator is [namespace tail name]. I.e., namespace information is stripped from the call. Normally the generated procedure marshalls the arguments, and returns the result from the remote procedure as its own result. If however the option -async was specified then the generated procedure will not wait for a result and return immediately. BUGS, IDEAS, FEEDBACK This document, and the package it describes, will undoubtedly contain bugs and other problems. Please report such in the category interp of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883]. Please also report any ideas for enhancements you may have for either package and/or documentation. KEYWORDS
comm, delegation, interpreter, procedure CATEGORY
Programming tools COPYRIGHT
Copyright (c) 2006 Andreas Kupries <andreas_kupries@users.sourceforge.net> interp 0.2 deleg_proc(n)
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