20 Advanced Commands for Middle Level Linux Users

You might have found the first article very much useful, this article is an extension of the 20 Useful Commands for Linux Newbies. The first article was intended for newbies and this article is for Middle-Level-User and Advanced Users. Here you will find how to customise search, know the processes running guide to kill them, how to make your Linux terminal productive is an important aspect and how to compile c, c++, java programs in nix.

20 Linux Advanced & Expert Commands

21. Command: Find

Search for files in the given directory, hierarchically starting at the parent directory and moving to sub-directories.

root@tecmint:~# find -name *.sh 
./Desktop/load.sh 
./Desktop/test.sh 
./Desktop/shutdown.sh 
./Binary/firefox/run-mozilla.sh 
./Downloads/kdewebdev-3.5.8/quanta/scripts/externalpreview.sh 
./Downloads/kdewebdev-3.5.8/admin/doxygen.sh 
./Downloads/kdewebdev-3.5.8/admin/cvs.sh 
./Downloads/kdewebdev-3.5.8/admin/ltmain.sh 
./Downloads/wheezy-nv-install.sh

Note: The `-name‘ option makes the search case sensitive. You can use the `-iname‘ option to find something regardless of case. (* is a wildcard and searches all the file having extension ‘.sh‘ you can use filename or a part of file name to customise the output).

root@tecmint:~# find -iname *.SH ( find -iname *.Sh /  find -iname *.sH)
./Desktop/load.sh 
./Desktop/test.sh 
./Desktop/shutdown.sh 
./Binary/firefox/run-mozilla.sh 
./Downloads/kdewebdev-3.5.8/quanta/scripts/externalpreview.sh 
./Downloads/kdewebdev-3.5.8/admin/doxygen.sh 
./Downloads/kdewebdev-3.5.8/admin/cvs.sh 
./Downloads/kdewebdev-3.5.8/admin/ltmain.sh 
./Downloads/wheezy-nv-install.sh

root@tecmint:~# find -name *.tar.gz 
/var/www/modules/update/tests/aaa_update_test.tar.gz 
./var/cache/flashplugin-nonfree/install_flash_player_11_linux.i386.tar.gz 
./home/server/Downloads/drupal-7.22.tar.gz 
./home/server/Downloads/smtp-7.x-1.0.tar.gz 
./home/server/Downloads/noreqnewpass-7.x-1.2.tar.gz 
./usr/share/gettext/archive.git.tar.gz 
./usr/share/doc/apg/php.tar.gz 
./usr/share/doc/festival/examples/speech_pm_1.0.tar.gz 
./usr/share/doc/argyll/examples/spyder2.tar.gz 
./usr/share/usb_modeswitch/configPack.tar.gz

Note: The above command searches for all the file having extension ‘tar.gz‘ in root directory and all the sub-directories including mounted devices.

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