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Checking for the absence of files

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Top Forums Shell Programming and Scripting Checking for the absence of files
# 8  
Old 05-29-2013
What about this:
Code:
$ MSG=( None One Both ) 
$ echo ${MSG[$(ls $F1 $F2 2>/dev/null | wc -w)]} of the files is present
None of the files is present

If you need the correct numerus of the verb, try
Code:
$ verb=( is are )
$ echo ${MSG[$(ls $F1 $F2 2>/dev/null | wc -w)]} of the files ${verb[$(ls $F1 $F2 2>/dev/null | wc -w) > 1]} present
Both of the files are present
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LEARN ABOUT ULTRIX

macstream

MACSTREAM(1)						      General Commands Manual						      MACSTREAM(1)

NAME

       macstream - Convert a series of files to a MacBinary stream

SYNOPSIS

       macstream [ - options ] files

DESCRIPTION

       macstream  takes  the files specified in files and combines them to a MacBinary stream on standard output subject to the options specified.
       If files also specifies directories they are followed recursively, and all files found will be put in the MacBinary stream,  together  with
       directory information.

OPTIONS

       In  the absence of any options, macstream takes the specified files and silently combines them to a MacBinary stream, writing the result to
       standard output.  Directories named in files are followed recursively, all files found will be put in the MacBinary stream,  together  with
       directory  information.	 Files	are assumed to be in MacBinary format.	However, if the filename ends with .info the file is assumed to be
       the info fork of a MacIntosh file split amongst more than one file.  In that case the files with .data and .rsrc extension  are	also  read
       (if  present).	Also, if the info fork is mentioned in the parameter list, the names of data and resource forks can also be mentioned, but
       those will be ignored (this is to allow wild-card expansion by the shell.)  Further, if	some  form  of	AppleShare  is	supported  by  the
       installed  program, and if the current directory, or one of the directories found during recursive processing, is a directory in the format
       of the supported version of AppleShare, those files will be handled according to the properties of AppleShare.

       -r     No intelligent file-processing is performed; all files named are assumed to be plain resource files, and are  written  as  MacIntosh
	      resource files with creator "RSED" and type "RSRC", unless another creator and/or type are specified.

       -d     No  intelligent  file-processing is performed; all files named are assumed to be plain data files, and are written as MacIntosh data
	      files with creator "MACA" and type "TEXT", unless another creator and/or type are specified.

       -u     As -d, but the codes for CR and LF are interchanged.

       -U     Is a synonym for -u.

       -c creator
	      Defines the creator name to be used if one of the previous options is specified.

       -t type
	      Defines the type name to be used if one of the previous options is specified.

       -l     List every file and directory processed.

       -i     Do not output files, give information only (implies -l.)

       -q     Ask the user for every file/directory whether it should be visited (implies -l.)

       -V     Gives the patchlevel of the program, and other information.  Other options are ignored and the program quits immediately.

       -H     Give short information about the options.  Other options are ignored and the program quits immediately.

BUGS

       As this is a beta release, there may still be some problems.

SEE ALSO

       macutil(1)

AUTHOR

       Dik T. Winter, CWI, Amsterdam, The Netherlands (dik@cwi.nl)

3rd Berkeley Distribution					 October 22, 1992						      MACSTREAM(1)