asked on

Shell script question - adding selective removal

Anyone out there familiar with shell scripting?

I have a cleanup routine that simply wipes an entire directory. I am not at all familiar with shell scripts... so hopefully someone can assist.

What I want to do is change this script so that instead of wiping the folder, it will do the following:
- Wipe all content except files ending with .mclog
- Nice to have: keep only the last 10 days of files ending with .mclog.

This is the cleanup script:

#! /bin/bash
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR} && rm --one-file-system -fr *

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Thank you

simon3270

To stop deleting .mclog files

#! /bin/bash
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR} && find . ! -name '*.mclog' | xargs rm --one-file-system -fr

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simon3270

To keep only the most recent 10 mclog files

rm $(find . -type f | xargs ls -t | tail +11)

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ASKER CERTIFIED SOLUTION

simon3270

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Doug Van

ASKER

This is absolutely awesome!! Thank you. :)

Doug Van

ASKER

Can you recommend any good shell script training (free or pay)?

I have a programming background so I should be able to grasp this without too much difficulty.

Thank you again!

Doug Van

ASKER

Yes, I like the idea of keeping the last 10 days of .mclog files intact.

I think I am supposed to replace:

rm $(find . -type f | xargs ls -t | tail +11)

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WITH

find . -type f -name '*.mclog' -mtime +10 | xargs rm -f

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The final version should be:

#! /bin/bash
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR} || exit 1
find . -type f ! -name '*.mclog' | xargs rm --one-file-system -f
find . -type f -name '*.mclog' -mtime +10 | xargs rm -f
find . -type d -depth -exec rmdir '{}' \;

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Is that correct?

Doug Van

ASKER

Awesome! Thank you!

Doug Van

ASKER

Hello Simon,

Could you please confirm my question at 2014-08-05 at 14:59:58? Thank you.

simon3270

Yes, your final version looks good! The "find" was supposed to replace the"rm".

Doug Van

ASKER

Hello Simon,
:(
The script won't work but it is my fault. I didn't realize that SCRIPT_DIR changes for each run.

I would like to revisit the original script...

#! /bin/bash
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR} && rm --one-file-system -fr *

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But before removing the folders, copy the .mclog files to another folder, named c:/temp/logs

Thanks again.

simon3270

That's almost a new question :-)

Anyway, to move the mclog files, you could, once you have CDed to the right directory, use

find . -name '*.mclog' -exec mv '{}' c:/temp/logs \;

simon3270

BTW, I can't think of any good online or physical scripting guides - I've just picked it up over 30 years!

Doug Van

ASKER

Hi Simon, I'll post this as a new q when I return from vacation...that way, crediting you for new q. Ty. :)

So, in other words...
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR}
[insert your line from above]
rm --one-file-system -fr *

Sorry, I can't seem to copy/paste from my phone.

Best regards.

So

simon3270

Yes, you were right. You could use:

#! /bin/bash
SCRIPT_DIR=$(dirname $(readlink -e $0))
cd ${SCRIPT_DIR} || exit 1
find . -name '*.mclog' -exec mv '{}' c:/temp/logs \;
rm --one-file-system -fr *

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No need for another question - just happy to answer this one!