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Am trying to zip a certain number of files and am stuck at below point,

   ls -lrt /lag/cnn/*/*/*/adb.tar.gz | grep -nri ABC >> sample.txt

In sample.txt i got filesNames on which i have to do touch command to extract filesNames that i need to tar.

   touch -t '<time>' first & touch -t '<time>' last 

So my question is , how can i implement this touch in sample.txt to extract what i need based on time and tar those files. Whether touch command and tar command can be added to the above command using pipe or should i do it separately.

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Can you tell us what you are trying to achieve? What are you using touch for? What files are you trying to zip? –  richard Dec 19 '13 at 12:43
    
@richard I have certain files in the path /lag/cnn/*/*/*/ i need to tar those files which are created between certain time.Am trying to do this from root directory. So far i have got all the files in the path after grep in sample.txt . from the file i have to extract files based on time and tar it. –  Mano Dec 19 '13 at 13:05
    
find is your friend. I will write an answer. –  richard Dec 19 '13 at 13:13

1 Answer 1

Ask find to find files within /lag/cnn to a maximum depth of 3 of at least so many minutes old. Then using xargs pass them to tar (to zip it).

This works with gnu tools:

find /lag/cnn -maxdepth 3 -newermt "2013-12-19 00:00" -o -type f -newermt "2013-12-16 00:00" -print0 | 
xargs -0 tar acf out.tar.gz

This should work with other tools.

touch -d 2013-12-19 00:00 later-timestamp.temporary
touch -d 2013-12-16 00:00 earlier-timestamp.temporary
find /lag/cnn -maxdepth 3 -newermm later-timestamp.temporary  -o -type f -newermm earlier-timestamp.temporary -print0 | 
xargs -0 tar zcf out.tar.gz
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My start time is :201312160000.00 and my End time is:201312190000.00 in the format "yyyymmddhhmm.ss" and i need to extract files between this time. how to use this in the above command.The format can be changed for that time how to use the command. –  Mano Dec 19 '13 at 13:29
    
Am getting, find: invalid predicate `-max-depth' and tar: invalid option -- a What is the problem? –  Mano Dec 20 '13 at 4:46
    
I have changed it to -maxdepth but now am getting find: invalid predicate `-newermt' –  Mano Dec 20 '13 at 4:50
    
Ah you are not using the Gnu versions. For gnu-tar the a is compress based on file extension (change it to z). For find I don't know, the manual says that not all finds support all of the -newerXY combinations. You could try -newermm reference file, you will have to use touch to create the two reference files somewhere out of the way. –  richard Dec 21 '13 at 10:27

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