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This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant.They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.But, if I use file truncate pattern like rm command removes specified file name from the directory entries, so you can’t see that file name after remove. Deleting file contents is the responsibility of kernel.If deleted file has any hard links or already opened by a process, its contents not removed.Currently, I have lost approximately 200G from hard drive, and I need to reclaim that - but don't know what to do to reclaim it - any ideas? I am running Ubuntu 10.0.4 LTS postgresql 8.4 Update 4 /usr/src/linux-headers-2.6.32-38-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-41-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-36-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-30-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-35-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-31-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-27-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-28-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-40-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-34-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-37-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-33-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-39-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-29-generic/include/config/mtdram/total 4 /usr/src/linux-headers-2.6.32-32-generic/include/config/mtdram/total 187426036 total Filesystem Inodes IUsed IFree IUse% Mounted on /dev/sda1 29M 1.8M 27M 7% / none 491K 776 490K 1% /dev none 492K 6 492K 1% /dev/shm none 492K 76 492K 1% /var/run none 492K 2 492K 1% /var/lock none 492K 1 492K 1% /lib/init/rw /dev/sdb1 30M 3.0K 30M 1% /mydata /dev/sdc1 0 0 0 - /media/Cruzer to judge where the space went.

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I am currently in the test phase, so I am generating several K's of files and deleting them (the files consume about 20G of space).In this troubleshooting guide, I will walk you through steps which will help you to reclaim space on disk after deleting files.Here we will learn how to remove deleted open files in Linux.When a file is deleted with the rm(1) command only the reference count is decreased. the file has other directory entries due to symlinks) then the underlying file data is not removed.Newer BSD users often don't realize that a program that has a file open is also holding a reference.

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