\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 Reads from the standard input
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 Makes the output completely unbuffered
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 Displays the output lines preceded by lines numbers
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 W
ith the
\b -n
\b0 option omits the line numbers from blank lines
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 Crushes out multiple adjacent empty lines so that the output is displayed single spaced
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 Displays non-printing characters so that they are visible
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 M
ay be given with the -v option, which displays a `$' character at the end of each line
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx533\tx1067\tx1601\tx2135\tx2668\tx3202\tx3736\tx4270\tx4803\tx5337\f0\b0\i0\ulnone\fs24\fc0\cf0 W
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b0\i0\ulnone\fs24\fc0\cf0 The files whose contents will be concatenated together
cd /etc/
change working directory
{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\pard\tx520\tx1060\tx1600\tx2120\tx2660\tx3200\tx3720\tx4260\tx4800\tx5320\f0\b\i0\ulnone\fs24\fc0\cf0 cd
\b0 causes directory becomes the new working directory. The process must have execute (search) permission in directory. Because a new process is created to execute each command, cd would be ineffective if it were written as a normal command. It is therefore recognized and executed by the shells. In csh(1) you may specify a list of directories in which directory is to be sought as a subdirectory if it is not a subdirectory of the current directory; see the description of the cdpath variable in csh(1).
\pard\tx1152\tx2304\tx3456\tx4608\tx5760\tx6912\tx8064\tx9216\tx10368\tx11520\f0\b0\i0\ulnone\fs24\fc0\cf0 Directory becomes the new working directory.
[148c]{\rtf0\ansi{\fonttbl\f0\fmodern Courier;}
\margl40
\margr40
\f0\b0\i0\ulnone\ql\fs24\fi0\li0\gray0\fc0\cf0\up0\dn0 cd /etc/\
\b0 counts lines, words and characters in the named files, or in the standard input if no name appears. A word is a maximal string of characters delimited by spaces, tabs or newlines. If an argument beginning with one of ``lwc'' is present, the specified counts (lines, words, or characters) are selected by the letters l, w, or c. The default is -lwc.