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Function: control write access to your terminal
Usage: mesg [y|n]
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Function: print newline, word, and byte counts for each file
Usage: wc [OPTION]... --files0-from=F
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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]
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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
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Function: compare two files byte by byte
Usage: cmp [OPTION]... FILE1 [FILE2 [SKIP1 [SKIP2]]]
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Function: pattern scanning and processing language
Usage: gawk [ POSIX or GNU style options ] [ -- ] program-text file ...
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Function: pattern scanning and processing language
Usage: pgawk [ POSIX or GNU style options ] -f program-file [ -- ] file ...
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Function: determine file type
Usage: file -C [-m magicfiles]
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Function: run a program in a modified environment
Usage: env [OPTION]... [-] [NAME=VALUE]... [COMMAND [ARG]...]
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Function: identify processes using files or sockets
Usage: fuser [-a|-s|-c] [-4|-6] [-n space ] [-k [-i] [-signal ] ] [-muvf] name ...
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Function: Translate, squeeze, and/or delete characters from standard input, writing to standard output
Usage: tr [OPTION]... SET1 [SET2]
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Function: format and display the on-line manual pages
Usage: [man options] [[section] page ...] ...
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Function: text editor
Usage: ed [-GVhs] [-p string] [file]
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Function: initialize a terminal or query terminfo database
Usage: tput [-Ttype] capname [parms ... ]
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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) ]