Reading Notes For Introduction To Linux

GNU software: Bash,GCC,GDB,Coreutils,Findutils

ls, cd, passwd, file, cat, pwd, exit, man, info, whatis

ctrl+a, ctrl+c, ctrl+d, ctrl+e, ctrl+h, ctrl+r, ctrl+z, ctrl+w

file types: -, d, l, c, s, p, b

fdisk, df, wc, export, which, sh, quota, alias, rm, find, xargs, grep, less, tail, head, ln, id, echo, chmod, touch, umask, mkdir, chown, cp, mv, pwd, rmdir, jobs, bg, fg, kill, ps, uptime, top, pstree, w, shutdown, reboot, time, nice, netstat, sleep, at, halt, init, dmesg, date, set, sort, uniq, cut, ulimit, awk, sed, perl, rpm, source, yum, lsof, mount, find, tar, jar, scp, ftp, dd, df, du, mount, rsync, gpg, ifconfig, host, dig, whois,

<, >, |, >>

command 2>&1 | less

make all 2> /dev/pts/7

spell < text.txt > error.log

date | tee file1 file2

ls -la | sort -nk 5

GPG,PGP

export http_proxy=http://username:password@proxy_server_name:port_number

SIPphone, Skype

Find

[root@localhost ~]# find / -iregex “.*fit.*” ! -type l -size -50M -exec ls -l {} ;

Sort

[root@localhost ~]# sort -t . -k1,1n -k2,2n -k3,3n -k4,4n idleserveroamips