Linux Learning note
day001: introduction to computers----CPU and DRAM.
day002: introduction to computers----disks, interfaces and boards.
day003: introduction to computers----operating system; history of linux----unix and GPL.
day004: how to learn linux; suggestions of bird brother.
day005: linux disks and modos.
day006: guid.
day007: bois and uefi.
day008: basic scripts.
day009: man whatis apropos info systemctl shutdown.
day010: file right.
day011: file and directory.
day012: directory tree.
day013: PATH, cp.
day014: cat, head, more.
day015: umask, chattr.
day016: suid,sgid, sbit,whereis, locate.
day017: find, review.
day018: inode, block.
day019: superblock.
day020: directory tree read.
day021: inconsitensy, journaling.
day022: mount point, df.
day023: ln, lsblk, blkid
day024: mount.
day025: mount loop.
day026: reivew.
day027: know vi.
day028: basic command in vi.
day029: vim exercise.
day030: visual block, multiple windows, multiple files.
day031: shell, kernel.
day032: shell functions, ctrl+u, ctrl+k.
day033: varaible.
day034: env, set.
day035: locale, declare, read.
day036: alias, source, bashrc.
day037: shortcuts, stty, wildcards.
day038: redirect, >, <.