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トッリク・オア・シェル芸

Linux
シェル芸

Last updated at 2014-10-31Posted at 2014-10-31

前準備

bash

# echo 'Trick or Treat!' > hoge
# tail -f hoge &
[1] 2550
Trick or Treat!
# 
# rm -f hoge
# ls -l hoge
ls: cannot access hoge: No such file or directory

ここから

bash

# lsof|grep hoge
tail      2550      root    3r      REG                8,2        16     129635 /root/hoge (deleted)

extファイルシステム限定

bash

# debugfs /dev/sda2 -R 'cat <129635>'
debugfs 1.41.12 (17-May-2010)
Trick or Treat!

procファイルシステムがある場合

bash

# cat /proc/2550/fd/3
Trick or Treat!

後始末

bash

# kill %%
[1]+  Terminated              tail -f hoge

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