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Linux filesystem/shaare/yL92RA

  • linux
  • linux

Directory Description
/boot Grub.cfg
/root home of root
/dev system device (mouse, keyboard)
/etc configuration files
/bin → /usr/bin everyday user commands
/sbin → /usr/sbin system/filesystem commands
/opt third party app (not part of os)
/proc running process (only in memory)
/lib → /usr/lib C prog lib
/tmp temporary folder
/home user dir
/var system logs
/run system daemon → store temporary runtime / PID file
/mnt mount external file system
/media CDrom
9 months ago Permalien
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  • Journalctl : journalctl journalctl -u sshd show only log for sshd logger hello write in syslog journalctl -f log is live nano /etc/systemd/journald.c...
  • System information, root recovery, environment variables, shortcuts : Finding System Information cat /etc/redhat-release → Red Hat version uname -a → Linux hostname, kernel, architecture dmidecode → hardware, BIOS, syst...
  • User management : Essential Commands: useradd groupadd userdel groupdel usermod Modify 3 files: /etc/passwd, /etc/group, /etc/shadow (passwd info) Cre...
  • Linux File Ownership, ACLs, and I/O Redirects : File Ownership chown → Change ownership chgrp → Change group Access Control List (ACL) setfacl → Set file ACL getfacl → Get file ACL Add Permissi...
  • Basic File Commands / File Search Commands : touch one two three → Create 3 files mkdir folder → Make directory mv -R / cp -R → Move or copy folder including subfolders find . -name "geor...


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