Read input txt while find copy Post: 302642445

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Top Forums Shell Programming and Scripting Read input txt while find copy Post 302642445 by otheus on Thursday 17th of May 2012 12:12:15 PM

05-17-2012

Registered User

I was missing "done" in my code. I Corrected the post. But Scrutinizer's post is also correct and more efficient. Both commands will fail, by the way, if there are too many files and the command line is too long. In that case you'd use xargs with my solution:

Code:

tar cf $BACKUP
cat file.txt | while read FILENAME;do find .  -name "$FILENAME" -type f -print;done |
{ read onefile; tar cf $BACKUP $onefile; xargs -r tar rf $BACKUP ; }

xargs tries to fill the command line with as many parameters as possible, invoking "tar rf $BACKUP " as a prefix to each command. If there are too many command-line parameters, it runs another invocation of the "tar rf $BACKUP" command with the rest of the parameters. The "r" option of tar adds to an existing tar file, so we first have to create it using the first file on the list. So we "read onefile" to get the first filename from the find operation. We then create the archive file using $onefile as the only argument. Now xargs can do its job properly.

Last edited by otheus; 05-17-2012 at 01:22 PM..

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ps2ascii

PS2ASCII(1)							 Ghostscript Tools						       PS2ASCII(1)

NAME

       ps2ascii - Ghostscript translator from PostScript or PDF to ASCII

SYNOPSIS

       ps2ascii [ input.ps [ output.txt ] ]
       ps2ascii input.pdf [ output.txt ]

DESCRIPTION

       ps2ascii  uses  gs(1) to extract ASCII text from PostScript(tm) or Adobe Portable Document Format (PDF) files. If no files are specified on
       the command line, gs reads from standard input; but PDF input must come from an explicitly-named file, not standard input.   If	no  output
       file is specified, the ASCII text is written to standard output.

       ps2ascii  doesn't  look at font encoding, and isn't very good at dealing with kerning, so for PostScript (but not currently PDF), you might
       consider pstotext (see below).

FILES

       Run "gs -h" to find the location of Ghostscript documentation on your system, from which you can get more details.

SEE ALSO

       pstotext(1), http://www.research.digital.com/SRC/virtualpaper/pstotext.html

VERSION

       This document was last revised for Ghostscript version 9.07.

AUTHOR

       Artifex Software, Inc. are the primary maintainers of Ghostscript.  David M. Jones <dmjones@theory.lcs.mit.edu> made  substantial  improve-
       ments to ps2ascii.

9.07								 12 February 2013						       PS2ASCII(1)