探索 lsb-release
套件檔案列表
執行
$ dpkg -L lsb-release
或是經過排序，執行下面指令
$ dpkg -L lsb-release | sort
顯示
/.
/usr
/usr/bin
/usr/bin/lsb_release
/usr/lib
/usr/lib/python2.7
/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/lsb_release.py
/usr/lib/python3
/usr/lib/python3/dist-packages
/usr/lib/python3/dist-packages/lsb_release.py
/usr/share
/usr/share/bug
/usr/share/bug/lsb-release
/usr/share/doc
/usr/share/doc/lsb-release
/usr/share/doc/lsb-release/changelog.gz
/usr/share/doc/lsb-release/copyright
/usr/share/doc/lsb-release/README.Debian
/usr/share/man
/usr/share/man/man1
/usr/share/man/man1/lsb_release.1.gz
/usr/share/pyshared
/usr/share/pyshared/lsb_release.py
man
執行
$ dpkg -L lsb-release | grep '/man/man.*/'
顯示
/usr/share/man/man1/lsb_release.1.gz
所以可以執行「$ man lsb_release」來閱讀相關說明。
bin
執行
$ dpkg -L lsb-release | grep '/bin/'
顯示
/usr/bin/lsb_release
執行
$ file /usr/bin/lsb_release
顯示
/usr/bin/lsb_release: Python script, ASCII text executable
執行
$ grep 'import' /usr/bin/lsb_release -n
顯示
20:from optparse import OptionParser
21:import sys
22:import os
23:import re
25:import lsb_release
執行
$ python3 -c 'import lsb_release; print(lsb_release);'
顯示
<module 'lsb_release' from '/usr/lib/python3/dist-packages/lsb_release.py'>
執行
$ python -c 'import lsb_release; print(lsb_release);'
顯示
<module 'lsb_release' from '/usr/lib/python2.7/dist-packages/lsb_release.pyc'>
執行
$ file /usr/lib/python3/dist-packages/lsb_release.py
顯示
/usr/lib/python3/dist-packages/lsb_release.py: symbolic link to ../../../share/pyshared/lsb_release.py
執行
$ file /usr/lib/python2.7/dist-packages/lsb_release
顯示
/usr/lib/python2.7/dist-packages/lsb_release.py: symbolic link to ../../../share/pyshared/lsb_release.py
執行
$ dpkg -L lsb-release | grep python | sort
顯示
/usr/lib/python2.7
/usr/lib/python2.7/dist-packages
/usr/lib/python2.7/dist-packages/lsb_release.py
/usr/lib/python3
/usr/lib/python3/dist-packages
/usr/lib/python3/dist-packages/lsb_release.py
執行
$ dpkg -L lsb-release | grep pyshared | sort
顯示
/usr/share/pyshared
/usr/share/pyshared/lsb_release.py
執行
$ grep '/etc/lsb-release' /usr/share/pyshared/lsb_release.py -n
顯示
358:# Whatever is guessed above can be overridden in /etc/lsb-release
361: etc_lsb_release = os.environ.get('LSB_ETC_LSB_RELEASE','/etc/lsb-release')