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Full Discussion: How do I check if find had no output
Top Forums Shell Programming and Scripting How do I check if find had no output Post 302074605 by tphyahoo on Wednesday 24th of May 2006 11:30:11 AM
Old 05-24-2006
How do I check if find had no output
Below script complains about remove, because the find that pipes into it has no results. It's okay operationally, but a bad error message.

I would like to first check whether find had any output, and only if it had output do the rm with xargs.

How can I check whether find had output?

Thanks!

**********
$ ./clean-createTopTen-output-dir ~/output-testdir/
rm
rm: missing operand
Try `rm --help' for more information.

$ cat clean-createTopTen-output-dir
#!/bin/bash

if [ $# -ne 1 ]; then
echo "usage: clean-createTopTen-output-dir ~/outputdir"
echo "removes CreateTopTen-outputted files from ~/outputdir"
exit
fi

cleandir=$1

# for now, just delete every file that is not a gif
# but leave dir structure intact
find $cleandir -type f ! -name *gif | xargs -t rm

$ find ~/output-testdir -type f ! -name *gif

(no files found)
 

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LEARN ABOUT X11R4

xcursorgen

XCURSORGEN(1)						      General Commands Manual						     XCURSORGEN(1)

NAME

       xcursorgen - create an X cursor file from a collection of PNG images

SYNOPSIS

       xcursorgen [ -V ] [ --version ] [ -? ] [ --help ] [ -p dir ] [ --prefix dir ] [ config-file [ output-file ] ]

DESCRIPTION

       Xcursorgen  reads the config-file to find the list of cursor images along with their hotspot and nominal size information.  Xcursorgen con-
       verts all of the images to Xcursor format and writes them to the output-file.

       Each line in the config file is of the form:
       <size> <xhot> <yhot> <filename> <ms-delay>

       Multiple images with the same <size> are used to create animated cursors, the <ms-delay> value on each line indicates how long  each  image
       should be displayed before switching to the next.  <ms-delay> can be elided for static cursors.

       If  config-file	is not specified, or is specified as "-", standard input is used for the configuration file.  If output-file is not speci-
       fied, or is specified as "-", standard output is used for the output file.

OPTIONS

       -V, --version
	       Display the version number and exit.

       -?, --help
	       Display the usage message and exit.

       -p dir, --prefix dir
	       Find cursor images in the directory specified by dir.   If not specified, the current directory is used.

SEE ALSO

       Xcursor(3)

X Version 11							 xcursorgen 1.0.2						     XCURSORGEN(1)
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