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Top Forums UNIX for Dummies Questions & Answers Shell input to remove every second file in a directory Post 302672111 by alpha_mouse on Monday 16th of July 2012 02:34:39 AM
Old 07-16-2012
Shell input to remove every second file in a directory

Hey guys,

I am looking for simple shell script, so i can remove every second file in a directory.

For example in any given directory there are 10.000 files:

0001.jpg
0002.jpg
0003.jpg
0004.jpg
0005.jpg
0006.jpg
0007.jpg
0008.jpg
....
1111.jpg
1112.jpg
etc.

After running the command, it will delete every second file in the directory. Instead of 10.000 files there are now 5000 and the dir will look like:

0001.jpg
0003.jpg
0005.jpg
0007.jpg
....
1111.jpg

Now in this example I am deleting the second line, which result in only the even numbers getting deleted. But I want to be able to shrink down the directory every time I run the command.

So after running it a second time it should half the size of the directory in number of file and look like this:

0001.jpg
0005.jpg
....
etc

I already renamed all the files so that they are sequential.

Thanks! Smilie
 

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JPEGICC(1)						      General Commands Manual							JPEGICC(1)

NAME
jpegicc - little cms ICC profile applier for JPEG. SYNOPSIS
jpegicc [options] input.jpg output.jpg DESCRIPTION
lcms is a standalone CMM engine, which deals with the color management. It implements a fast transformation between ICC profiles. jpegicc is little cms ICC profile applier for JPEG. OPTIONS
-b Black point compensation. -c <0,1,2,3> Precalculates transform. (0=Off, 1=Normal, 2=Hi-res, 3=LoRes) [defaults to 1] -g Marks out-of-gamut colors on softproof. -h <0,1,2> Show summary of options and examples. -i profile Input profile (defaults to sRGB). -m <0,1,2,3> SoftProof intent. -n Ignore embedded profile. -p profile Soft proof profile -o profile Output profile (defaults to sRGB). -q <0..100> Output JPEG quality. -t <0,1,2,3> Intent (0=Perceptual, 1=Colorimetric, 2=Saturation, 3=Absolute). -v Verbose. EXAMPLES
To color correct from scanner to sRGB: jpegicc -iscanner.icm in.jpg out.jpg To convert from monitor1 to monitor2: jpegicc -imon1.icm -omon2.icm in.jpg out.jpg To make a CMYK separation: jpegicc -oprinter.icm inrgb.jpg outcmyk.jpg To recover sRGB from a CMYK separation: jpegicc -iprinter.icm incmyk.jpg outrgb.jpg To convert from CIELab ITU/Fax JPEG to sRGB jpegicc -iitufax.icm in.jpg out.jpg NOTES
For suggestions, comments, bug reports etc. send mail to info@littlecms.com. SEE ALSO
tifficc(1), tiffdiff(1), icc2ps(1), icclink(1), icctrans(1), wtpt(1) AUTHOR
This manual page was written by Shiju p. Nair <shiju.p@gmail.com>, for the Debian project. September 30, 2004 JPEGICC(1)
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