dvdrecord -scanbus = lists dvd devices<\/p>\n
df -h = free hard drive space
\n
\ndf = free hard drive space
\n
\ndu -sh = disk usage
\n
\ndu -h = hard drive usage<\/p>\n
dialog \u2013msgbox \u201cHello\u201d 8 12 = create dialog box
\n
\ndialog \u2013title \u201cCheck me\u201d –checklist \u201cPick numbers\u201d 12 15 2 1 \u201cFirst\u201d \u201con\u201d 2 \u201cSecond\u201d \u201coff\u201d = create checklist<\/p>\n
echo $SHELL = prints the default shell name
\n
\necho $OSTYPE = prints the operating system name
\n
\necho ‘text’ = prints what is held in the quotes
\n
\necho $HOME = prints home directory
\n
\necho $USER = who is currently using the system
\n
\necho $HISTFILE = location of history file
\n
\necho $HISTFILESIZE = history’s set size
\n
\necho $HISTSIZE = history’s set size
\n
\necho \u201ctest\u201d | mail -v -s test xyz@abc.com = sending e-mail from a terminal<\/p>\n
ethtool eth0 = info about ethernet connection
\n
\nethtool -i eth0 = driver for ethernet
\n
\nethtool -S eth0 = statictics for ethernet
\n
\nethtool l0 = info about local loop<\/p>\n
egrep \u201cone\/two\/three\u201d filename = looks for any of these 3 words in a file
\n
\nenv = prints all environment variables
\n
\nexpr 7 + 8 = simple command based calculator (mind the spaces in the equation)<\/p>\n
\/etc\/init.d\/httpd status = service status
\n
\n\/etc\/init.d\/mysqld start = starts mysql server
\n
\n\/etc\/init.d\/oracle-xe start = starts oracle server<\/p>\n
exec ls -l = runs ls command and closes the terminal
\n
\nexec uptime = runs uptime command and closes terminal<\/p>\n
fc -l = short command history
\n
\nfdisk -l = list of partitions on the hdd
\n
\nfdisk -l \/dev\/hda = partitions within a specific partition
\n
\nfdisk \/dev\/hda = master device on IDE channel 0
\n
\nfdisk \/dev\/hdb = slave device on IDE channel 0
\n
\nfdisk \/dev\/hdc = master device on IDE channel 1
\n
\nfdisk \/dev\/hdd = slave device on IDE channel 1<\/p>\n
find \/usr\/bin -amin -30 = finds files accessed in last 30 minutes in \/usr\/bin
\n
\nfind \/usr\/bin -atime +50 = finds files not accessed for than 50 days
\n
\nfind \/usr\/bin -perm 750 = finds files with permission 750
\n
\nfind \/usr\/bin -user root = finds files owned by root in \/usr\/bin
\n
\nfind \/usr\/bin -user root | wc -l = calculates total no of files owned by root
\n
\nfind ! \/usr\/bin -user root = finds files not owned by user root
\n
\nfind ! \/usr\/bin -user root | wc -l = calculates no of files not owned by root
\n
\nfind -iname filename.ext = finds a file by name
\n
\nfind . = lists all files and subdirectories in the current directory
\n
\nfind . -size +200M = finds files more than 200M in size
\n
\nfind . -size +200M -ls = more details
\n
\nfind . -name *.txt -size +40K = finds .txt file names of more than 40 k in size
\n
\nfind \/usr\/share\/docs | xargs grep -l ‘keyword’ = finds files that contain the keyword from documents
\n
\nfinger = log in details<\/p>\n
free = memory usage in kb
\n
\nfree -b = memory usage in mb
\n
\nfree -m = memory usage in blocks
\n
\nfree -mt = memory usage in totals
\n
\nfree -g = memory usage in gigabytes
\n
\nfree -s 5 = update memory usage every 5 seconds<\/p>\n
fuser -amuv \/boot = shows processes with \/boot open (a = all, m = man, u = user, v = verbose)
\n
\nfuser \/boot = shows parent pids for processes opening \/boot
\n
\nfuser -m \/boot = shows pids for processes opening \/boot
\n
\nfuser -u \/boot = shows pids for user
\n
\nfuser -k \/boot = kills all processes with \/boot files open
\n
\nfuser -l = lists supported signals
\n
\nfuser -k -HUP \/boot = kills all processes running \/boot by sending HUP signal <\/p>\n
getenforce = status of selinux
\n
\ngdmsetup = display configuration client\/gui
\n
\nglxinfo = graphics card info
\n
\nglxinfo | direct = check if direct randering is on<\/p>\n
gnome-terminal -x alsamixer = stars terminal with alsamixer displayed
\n
\ngnome-terminal -tab -tab -tab = stars terminal with 3 open tabs
\n
\ngnome-terminal -geometry 80*20 = stars terminal 80 characters and 20 lines
\n
\ngnome-terminal -zoom=2 = stars terminal with larger fonts<\/p>\n
grep india \/usr\/share\/dict\/words = looks for the word ‘india’ in dictionary
\n
\ngrep \u201cword\u201d filename.txt = prints lines with the \u201cword \u201d in them
\n
\ngrep \u2013color \u201cword\u201d filename.txt = prints lines with the word in color
\n
\ngrep 300 filename.txt = prints lines with 300 in them
\n
\ngrep -n \u201cword\u201d filename = line numbers with the word in them printed
\n
\ngrep -vn \u201cword\u201d filename = lines without the \u201cword\u201d in them
\n
\ngrep -c \u201cword\u201d filename = total no. of occurrences of \u201cword\u201d
\n
\ngrep -n \u201cword\u201d * = lists all lines from all files that contain \u201cword\u201d
\n
\ngrep -R myword \/etc\/bin* = lists lines with their file names in the directory containing myword
\n
\ngrep -h -R myword \/etc\/bin* = lists lines without their file names containing myword
\n
\ngrep -Rn myword \/etc\/bin* = lists lines containing myword with their numbers
\n
\ngrep \u2013color -R myword \/etc\/bin* = lists lines in the directory containing myword in color
\n
\ngrep -Rl myword \/etc\/bin* = lists file names in the directory containing myword
\n
\ngrep -x \u201cword\u201d * = only \u201cword\u201d a line
\n
\ngrep word filename.txt = searchers for the word in the file (case sensitive)
\n
\ngrep word -n filename.txt = lists lines containing word with their numbers
\n
\ngrep -i word filename = searchers for the word in the file (i = not case sensitive)
\n
\ngrep -i word1 word2 filename = searchers for the word in the file
\n
\ngroups = list of groups<\/p>\n
gzip = only zips, gunzip = unzips + untars, tar = zips + unzips with czvf, xzvf
\n
\ngzip abc.txt = zips a file
\n
\ngzip -1 abc.txt = fast compression but poor quality
\n
\ngzip -9 abc.txt = slow compression but good quality
\n
\ngzip -rv foldername = zips all files in the folder
\n
\ngzip -tv abc.txt.gz = checks integrity if gz file with verbose
\n
\ngzip -lv abc.txt.gz = gives info about gz file
\n
\ngunzip -v abc.txt.gz = unzips gz file with verbose
\n
\ngunzip -c abc.tar.gz | tar x = unzips and untars a file (two steps)
\n
\ngunzip abc.tar.gz; tar xf abc.tar = unzips then untars a file (two steps)<\/p>\n
hal-device-manager = opens a gui for hardware profiling
\n
\nhead -6 .bash_history = first 6 commands
\n
\nhead -5 filename.txt = prints first 5 lines of the file
\n
\nhead -n 5 filename.txt = prints first 5 lines of the file<\/p>\n
history 5 = last five commands
\n
\nhistory | wc -l = total history commands
\n
\nhistory | grep rpm = search through history for rpm commands
\n
\nhistory = list of all commands used so far<\/p>\n
hostname = name of the host
\n
\nhwclock \u2013show = prints today’s date and time
\n
\nhwclock \u2013set \u2013date =\u201d2\/22\/2008 12:25:30\u201d = reset new time and date<\/p>\n
identify imagename.jpg = gives image info
\n
\nidentify -verbose imangename.jpg | less = gives info about image
\n
\nidentify -verbose imangename.jpg | more = gives more info about image
\n
\nid = info about user\/root’s groupid\/uid etc
\n
\nifconfig = network card info, ipaddress etc.
\n
\nifconfig -a = available network cards
\n
\ninfo coreutils = info about core commands
\n
\niostat 3 = checks disk reads
\n
\niostat -c 3 = updates cpu usage
\n
\niostat -c -t = cpu usage with time
\n
\niostat -c -t 2 10 = repeat cpu usage info every 2 seconds 10 times
\n
\nip a = available network interfaces
\n
\nip addr = ip addresses by method of connection ie ppp0
\n
\nip addr show eth0 = ip address for ethernet connection
\n
\nip calc -bnm 192.168.0.1\/27 = displays netmast ip from CIDR
\n
\nip route = checks routing table
\n
\nisoinfo = info about iso
\n
\niwconfig = checks for wireless connection
\n
\niwlist = checks for a wireless access point<\/p>\n
kded \u2013version = kde version
\n
\nkde-config \u2013version = kde version<\/p>\n
kill 23456 = kills process with id 23456
\n
\nkill -9 1234 = sends SIGKILL to id 1234
\n
\nkill -SIGCONT 1234 = sends SIGCONT to id 1234
\n
\nkill 4% = kills the process represented by 4% job
\n
\nkill sttd = kills all sttd daemons running<\/p>\n
last = last log in details
\n
\nlastlog [-u root] = last log in time
\n
\nlast [root] = entire log in history, the feature needs to be activated first
\n
\nlastb [root] = prints failed login attempts <\/p>\n
less filename.txt = prints contents of the file, scroll bar fixed, Press q to quite and spacebar to go to another page
\n
\nless filename.txt = prints contents of the file, scroll bar fixed, press spacebar
\n
\nless filename \/word = searches for word <\/p>\n
ln -s originalfile newfile = creates a symbolic link to new file
\n
\nlocate xyz = locates file xyz case-sensitive
\n
\nlocate -i xyz = locates file xyz not case-sensitive
\n
\nlocate -r \/ls$ = locates files ending in \/ls
\n
\nlocate -r james*bond = locate files with james and bond in their names
\n
\nlocate -r ^ boot\/grub\/me = locate files beginning with boot\/grub\/me
\n
\nlocate *.jpg > Desktop\/myjpgs.txt = stores results of search in a file named myjpgs.txt
\n
\nlsmod = lists kernel modules installed
\n
\nlsmod | sort -k 2,2n = sorts kernel modules in increasing size order<\/p>\n
ls \/var\/www\/html\/*.html = lists all html files
\n
\nls .??* = lists all directory names that start with a dot .
\n
\nls \/etc\/rc.d = prints all directories for all available run levels
\n
\nls \/etc\/rc.d\/init.d = list of system services’ scripts
\n
\nls -l = lists files and folders in the current directory
\n
\nls -la = lists hidden files and folders in the current directory with a dot
\n
\nls li = files with their inodes
\n
\nls -lt = files recently modified
\n
\nls -lu = lists files by their accss time
\n
\nls -ln = user names and groups numerically displayed
\n
\nls -lh = human readable file sizes
\n
\nls -lR = displays all the files and their folders
\n
\nls -F = lists files by type
\n
\nls -c = lists files columnwise
\n
\nls \u2013color =always = shows filenames in colors<\/p>\n
ls -l \/var\/lib\/rpm = rpm database
\n
\nls = lists contents of a directory
\n
\nls . = lists contents of a directory
\n
\nls .. = lists contents of a directory
\n
\nls \/ = lists all system directories
\n
\nls = lists directories in current directory
\n
\nls \/var = lists all subdirectories under the \/var directory
\n
\nls \/proc | wc -l = number of subdirectories in \/proc directory
\n
\nls -ltr =
\n
\nls -l filename.ext = checks permissions for a file
\n
\nls -l \/etc = permission status of all subdirectories
\n
\nls -a = shows hidden . Dot directories. A kind of special configuration files not be messed with
\n
\nls tr | ‘\\n’ ‘ ‘ = replaces all newline characters with spaces
\n
\nls tr | -d ‘\\n’ = deletes newlines
\n
\nls \/var\/lib\/mysql = list of databases in blue color <\/p>\n
lsof = list of open directories and files
\n
\nlsof -c bash = list of files open by bash shells
\n
\nlsof -d cwd = list of directories open as current working directory
\n
\nlsof -u james = list of files and directories open by user james
\n
\nlsof \/mnt\/sda1 = list of anything open on \/mnt\/sda1 file system
\n
\nlsof +d \/mnt\/sda1\/dx = list of anything open under \/mnt\/sda1\/dx directory<\/p>\n
lpadmin = Linux printer details
\n
\nlspci = info about pci devices\/ports
\n
\nlspci | grep VGA = graphics card info
\n
\nlspci | grep audio = audio card info
\n
\nlspci | grep -i modem = modem info
\n
\nlspci | grep -i usb = usb ports info
\n
\nlspci | grep -i ethernet = ethernet card info<\/p>\n
man -f php = info about php modules
\n
\nman -k php = info about php modules
\n
\nman php = php manual pages
\n
\nman man = info about manual pages and their format
\n
\nman 3 php = shows entries for php in 3rd section of the manual
\n
\nman php | grep word = searches for a particular word in php manual
\n
\nman hier = info about directories
\n
\nmd5sum xyz.iso = checksum verification
\n
\nmore filename.txt = shows contents of a file page by page (press spacebar)
\n
\nmount = files system type per device
\n
\nmount \/mnt\/cdrom = mounts cd rom
\n
\nmysql = launches mysql
\n
\nmysql -u root -p = asks for a password to launch mysql
\n
\nmy old.txt new.txt = renames a file<\/p>\n
netstat = info about active Internet connections
\n
\nnetstat -i = netstat statictics
\n
\nnetstat -tanp = shows active tcp connections
\n
\nnetstat -uanp = shows active udp connections<\/p>\n
od -c -t x1 filename.txt = list of newline characters in Linux<\/p>\n
ogg123 mysong.ogg = plays ogg file
\n
\nogg123 http:\/\/xyz.com\/music\/audio.ogg = plays from web address
\n
\nogg123 -z *.ogg = play files in pseudo-random order
\n
\nogg123 -Z *.ogg = same -z, but repeats forever
\n
\nogg123 \/var\/music\/ = plays songs in \/var\/music and sub dirs
\n
\nogg123 -@myplaylist = plays songs from playlist<\/p>\n
pgrep httpd = gives process id for httpd
\n
\npgrep -l init = gives process id for processes containing init as string
\n
\nps -lu james = all processes owned by james
\n
\nphp –help = shows all php help pages in full
\n
\nphp –help | less = shows limited php help pages, scroll bar fixed, q to exit
\n
\nphp -v = php version
\n
\nphp –version = php version
\n
\npirut =
\n
\npasswd = asks for a new password for root<\/p>\n
play musicfilename.wav = plays music file
\n
\nplay *.wav = plays all wav files upto 32
\n
\nplay audio.au vol. 6 = plays audio file with volume level 6
\n
\nplay -r 12000 short.aiff = sampling rate of 12000<\/p>\n
ps ajfx = process hierarchy in BSD style
\n
\nps ax = lists all running processes
\n
\nps aux = lists all running processes with BSD cycle
\n
\nps auwx = running processes with wide format
\n
\nps auwwx = running processes with unlimited width
\n
\nps auwx | sort -r -k 4,4 = sort processes on descending memory usage
\n
\nps auwx | head -4 = prints first 4 lines of a process
\n
\nps auwx | head -n 4 = prints first 4 lines of a process
\n
\nps auwx | tail -4 = prints last 4 lines of a process
\n
\nps auwx | tail -n 4 = prints last 4 lines of a process
\n
\nps auwx | less = shows contents of a process, scroll bar fixed
\n
\nps auwx | more = shows contents of a process page by page (press spacebar)
\n
\nps auwx | grep init = shows lines containing init in them
\n
\nps auwx | grep \u201c\\[*\\]\u201d = shows bracketed comments
\n
\nps = list of processes by current user in current shell
\n
\nps -C httpd = process info for http
\n
\nps -p 5323 -o pid,ppid,bsdtime,args = process info for id 5323
\n
\nps -U james,john -o pid,ruser,tty,stat,args = process info for 2 users
\n
\nps -e = lists all running processes
\n
\nps -e | wc -l = number of all running processes
\n
\nps -ef = lists all running processes with format listing
\n
\nps -ef \u2013forest = process hierarchy in forest format
\n
\nps -eF = lists all running processes with full format listing
\n
\nps -ejH = process hierarchy
\n
\nps -el = lists all running processes with long listing
\n
\nps -eo ppid,user,%mem,size,vsize,comm \u2013sort=-size = multiple parameters
\n
\nps -eo ppid,user,bsdstart,bsdtime,%cpu,args \u2013sort=-%cpu = multiple parameters
\n
\nps -eo ppid,user,bsdstart,bsdtime,%cpu,args \u2013sort=-%cpu = multiple parameters
\n
\nps -eo ppid,user,stat,tname,sess,cputime,args \u2013sort=user = multiple parameters
\n
\npstree = processes in alphabetical order in tree format
\n
\nps -u root = list of processes run by user root
\n
\nps -u root u = list of processes run by root with cpu usage
\n
\nps -fu root = list of processes run by root with PPID
\n
\npwd = current working directory
\n
\npwd -P = one level up from current working directory
\n
\npwd -L = one level down from current working directory<\/p>\n
printenv | less = prints all environment variables
\n
\nps -ef | grep root = processed owned by root<\/p>\n
ramsize = info about ram
\n
\nreboot = reboots the pc
\n
\nredhat-logviewer = opens a GUI tool for log monitoring
\n
\nrepoquery -il tomcat5 = list of files in tomcat5 package in any repo
\n
\nrepoquery –provides php = info about php modules<\/p>\n
rm ~\/.bash_history = clears history of commands
\n
\nrm -f *.doc = removes\/deletes all files of .doc extension in a folder<\/p>\n
rpm2cpio xyz.rpm > xyz.cpio = extracts cpio archive from rpm package
\n
\nrpm2cpio xyz.rpm | cpio -tv = lists the contents of archive
\n
\nrpm -e xyz = removes package xyz
\n
\nrpm -e \u2013nodeps xyz-5.6.fc5.i386 = removes 32+ bit version of package if more versions available
\n
\nrpm -ivh xyz.rpm = install package xyz (i=install, v=verbose, h=hash)
\n
\nrpm -ivh http:\/\/ftp.abc.com\/xyz.rpm = install package xyz from the site
\n
\nrpm -Uvh xyz.rpm = update package xyz (U=update)
\n
\nrpm -q –scripts kernel |less = list of all preinstall & post-install scripts
\n
\nrpm -q php = php version no.
\n
\nrpm -qi php = php install info
\n
\nrpm -qi fedora-release = Fedora installation info
\n
\nrpm -qi php\/per\/python\/ruby = version info for the package
\n
\nrpm -qa grun = prints grub version no.
\n
\nrpm -qa php = prints php version no.
\n
\nrpm -qa | sort | pr \u2013column=2 | less = shows installed packages in 2 columns per page
\n
\nrpm -qa | sort | pr \u2013column=2 > abc.txt = saves output to a file
\n
\nrpm -qa | sort | pr \u2013column=2 | lpr = sends output to a printer
\n
\nrpm -qa | grep kernel | sort = sorts installed packages in alphanumeric order
\n
\nrpm -qa | grep kernel | sort -r = sorts in reverse alphanumeric order
\n
\nrpm -qa | grep php = prints version nos. of all php related packages
\n
\nrpm -qa | head = only 10 softwares listed
\n
\nrpm -qa | head -n5 = first 5 software listed
\n
\nrpm -qa | wc -l = total no of packages installed on the system
\n
\nrpm -ql php = lists all files in a particular package
\n
\nrpm -qal | grep php = find php in all installed packages
\n
\nrpm -ql php | wc -l = total no. of files in a particular package
\n
\nrpm -qa | grep php | wc -l = count the total number of php modules
\n
\nrpm -qf \/var\/lib\/php = what package a particular file belongs to
\n
\nrpm -q –scripts mysql = scripts of a package
\n
\nrpm -qa php | wc -l = total no. of php packages
\n
\nrpm -qi php = info about php
\n
\nrpm -q \u2013last php = installation date of php
\n
\nrpm -qi php | grep -i vendor = php vendor name
\n
\nrpm -qi fedora-release | grep -i vendor = prints vendor name from a file named fedora-release
\n
\nrpm -v = rpm version<\/p>\n
rpm -qa –queryformat ‘%{NAME}==%{VENDOR}\\n’ | grep -v “Red Hat” | sort =
\n list of installed packages with their vendor names except Red Hat
\n
\nrpm -qa –qf ‘%{NAME}==%{VENDOR}\\n’ | grep “Red Hat” | sort = list of installed packages with their vendor name as Red Hat
\n
\nrpm -qa –qf ‘%{NAME}==%{VENDOR}\\n’ | sort = list of installed packages with their vendor names
\n
\nrpm -qa –qf ‘%{NAME}==%{VENDOR}\\n’ | grep “Red Hat” | wc -l = total number of installed packages with Red Hat as their vendor <\/p>\n
rpm -qa –qf ‘%{NAME}==%{LICENSE}\\n’ | sort = list of all installed packages with their licence type sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{LICENSE}\\n’ | wc -l = total number of installed packages with their licence type
\n
\nrpm -qa –qf ‘%{NAME}==%{LICENSE}\\n’ | grep php | sort = list of all php packages with their licence types sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{LICENSE}\\n’ | grep php | wc -l = total number of all php packages with their licence types<\/p>\n
rpm -qa –qf ‘%{NAME}==%{SIZE}\\n’ | sort = list of all installed
\npackages with their names and sizes in bytes sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{SIZE}\\n’ | grep php | sort = list of all php
\npackages with their names and sizes in bytes sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{SIZE}\\n’ | grep php | wc -l = total number of
\ninstalled php packages with their names and sizes in bytes <\/p>\n
rpm -qa –qf ‘%{NAME}==%{SUMMARY}\\n’ | sort = list of all installed
\npackages with their names and functions sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{SUMMARY}\\n’ | grep php | sort = list of all php
\n packages with their names and functions sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{SUMMARY}\\n’ | grep php | wc -l = total number of all php packages with their names and functions<\/p>\n
rpm -qa –qf ‘%{NAME}==%{BUILDHOST}\\n’ | sort = list of all installed
\npackages with their names and buildhosts sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{BUILDHOST}\\n’ | grep php | sort = list of all
\nphp packages with their names and buildhosts sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{BUILDHOST}\\n’ | grep php | wc -l = total number of all php packages with their names and buildhosts<\/p>\n
rpm -qa –qf ‘%{NAME}==%{URL}\\n’ | sort = list of all installed packages with their names and urls sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{URL}\\n’ | grep php | sort = list of all php packages with their names and urls sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{URL}\\n’ | grep php | wc -l = total number of all php packages with their names and urls<\/p>\n
rpm -qa –qf ‘%{NAME}==%{ARCH}\\n’ | sort = list of all installed
\npackages with their names and architecture type sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{ARCH}\\n’ | grep php | sort = list of all php
\npackages with their names and architecture type sorted alphabetically
\n
\nrpm -qa –qf ‘%{NAME}==%{ARCH}\\n’ | grep php | wc -l = total number of all php packages with their names and architecture type<\/p>\n
rpm \u2013querytags = list of all rpm query tags
\n
\nrpm \u2013querytags | wc -l = total number of rpm tags
\n
\nrpm -Va = verify all installed packages
\n
\nrpm -Va | grep php = verify php packages only
\n
\nrpm -Vv | grep php = check php packages only with verbose<\/p>\n
root = superuser, who has permission to do anything
\n
\n\/root = root account’s home directory<\/p>\n
sha1sum xyz.iso = checksum verification
\n
\nstat filename = prints access\/modification right to a file
\n
\nset = list of all enviornmental variables
\n
\nset | wc -l = total number of enviornmental variables
\n
\nset history = 60 = history of commands set to 60
\n
\nset | less = prints all shell variables, scroll bar fixed<\/p>\n
setserial -g \/dev\/ttys0 \/dev\/ttys1 \/dev\/ttys2 \/dev\/tty3 = info about serial ports
\n
\nsetserial -ga \/dev\/ttys0 = info about one serial port
\n
\nstty -F \/dev\/ttys0 -a = info about serial port<\/p>\n
service httpd start = starts apache server
\n
\nservice mysqld start = starts mysql server
\n
\nservice –status-all = service status of all the services installed<\/p>\n
shutdown = shutdowns the pc
\n
\nshutdown -r = reboot
\n
\nshutdown -0 (Zero) = reboot
\n
\nshutdown \u2013 h = halt
<\/p>\n","protected":false},"excerpt":{"rendered":"
dvdrecord -scanbus = lists dvd devices df -h = free hard drive space df = free hard drive space du -sh = disk usage du -h = hard drive usage dialog \u2013msgbox \u201cHello\u201d 8 12 = create dialog box dialog \u2013title \u201cCheck me\u201d –checklist \u201cPick numbers\u201d 12 15 2 1 \u201cFirst\u201d \u201con\u201d 2 \u201cSecond\u201d \u201coff\u201d […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-1825","post","type-post","status-publish","format-standard","hentry","category-about-knowledge-os_linux"],"_links":{"self":[{"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/posts\/1825","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/comments?post=1825"}],"version-history":[{"count":0,"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/posts\/1825\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/media?parent=1825"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/categories?post=1825"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.msinterdev.org\/wp\/wp-json\/wp\/v2\/tags?post=1825"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}