Linux Command

env
Function: run a program in a modified environment
Usage: env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...]
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
chgrp
Function: change group ownership
Usage: chgrp [OPTION]... GROUP FILE...
file
Function: determine file type
Usage: file -C [-m magicfiles]
cmp
Function: compare two files byte by byte
Usage: cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
pgawk
Function: pattern scanning and processing language
Usage: pgawk [ POSIX or GNU style options ] -f program-file [ -- ] file ...
gawk
Function: pattern scanning and processing language
Usage: gawk [ POSIX or GNU style options ] [ -- ] program-text file ...
man
Function: format and display the on-line manual pages
Usage: [man options] [[section] page ...] ...
batch
Function: queue, examine or delete jobs for later execu-tion
Usage: batch
ed
Function: text editor
Usage: ed [-GVhs] [-p string] [file]
lp
Function: print files
Usage: lp [ -E ] [ -U username ] [ -c ] [ -d destination[/instance] ] [ -h hostname[:port] ] [ -m ] [ -n num-copies ] [ -o option[=value] ] [ -q priority ] [ -s ] [ -t title ] [ -H handling ] [ -P page-list ] [ -- ] [ file(s) ]
passwd
Function: update user’s authentication tokens
Usage: passwd [-k] [-l] [-u [-f]] [-d] [-e] [-n mindays] [-x maxdays] [-w warndays] [-i inactivedays] [-S] [--stdin] [username]
strings
Function: print the strings of printable characters in files.
Usage: strings [-afovV] [-min-len] [-n min-len] [--bytes=min-len] [-t radix] [--radix=radix] [-e encoding] [--encoding=encoding] [-] [--all] [--print-file-name] [-T bfdname] [--target=bfdname] [-w] [--include-all-whitespace] [-s] [--output-separatorsep_string] [--help] [--version] file...
lsof
Function: list open files
Usage: lsof [ -?abChlnNOPRtUvVX ] [ -A A ] [ -c c ] [ +c c ] [ +|-d d ] [ +|-D D ] [ +|-e s ] [ +|-E ] [ +|-f [cfgGn] ] [ -F [f] ] [ -g [s] ] [ -i [i] ] [ -k k ] [ -K k ] [ +|-L [l] ] [ +|-m m ] [ +|-M ] [ -o [o] ] [ -p s ] [ +|-r [t[m]] ] [ -s [p:s] ] [ -S [t] ] [ -T [t] ] [ -u s ] [ +|-w ] [ -x [fl] ] [ -z [z] ] [ -Z [Z] ] [ -- ] [names]