Linux Command

wc
Function: print newline, word, and byte counts for each file
Usage: wc [OPTION]... --files0-from=F
netstat
Function: Print network connections, routing tables, interface statis-tics, masquerade connections, and multicast memberships
Usage: netstat [address_family_options] [--tcp|-t] [--udp|-u] [--raw|-w] [--listening|-l] [--all|-a] [--numeric|-n] [--numeric-hosts] [--numeric-ports][--numeric-ports] [--symbolic|-N] [--extend|-e[--extend|-e]] [--timers|-o] [--program|-p] [--verbose|-v] [--continuous|-c] [delay]
uniq
Function: report or omit repeated lines
Usage: uniq [OPTION]... [INPUT [OUTPUT]]
printf
Function: format and print data
Usage: printf FORMAT [ARGUMENT]...
ping, ping6
Function: send ICMP ECHO_REQUEST to network hosts
Usage: ping [ -LRUbdfnqrvVaAB] [ -c count] [ -i interval] [ -l preload] [-p pattern] [ -s packetsize] [-t ttl] [ -w deadline] [ -F flowlabel] [-I interface] [-M hint] [ -Q tos] [-S sndbuf] [-T timestamp option] [-W timeout] [hop ...] destination
cmp
Function: compare two files byte by byte
Usage: cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
file
Function: determine file type
Usage: file -C [-m magicfiles]
sleep
Function: delay for a specified amount of time
Usage: sleep OPTION
ed
Function: text editor
Usage: ed [-GVhs] [-p string] [file]
fuser
Function: identify processes using files or sockets
Usage: fuser [-a|-s|-c] [-4|-6] [-n space ] [-k [-i] [-signal ] ] [-muvf] name ...
pgawk
Function: pattern scanning and processing language
Usage: pgawk [ POSIX or GNU style options ] -f program-file [ -- ] file ...
env
Function: run a program in a modified environment
Usage: env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...]
echo
Function: display a line of text
Usage: echo [SHORT-OPTION]... [STRING]...
man
Function: format and display the on-line manual pages
Usage: [man options] [[section] page ...] ...
tput
Function: initialize a terminal or query terminfo database
Usage: tput [-Ttype] capname [parms ... ]