Last login: Thu Nov 29 15:06:13 on ttys015 Math-Tuttle-OSX:~ smtuttle$ cd humboldt/f12cs279/279lectures/279lect14-2 Math-Tuttle-OSX:279lect14-2 smtuttle$ uptime 15:22 up 14 days, 10:31, 18 users, load averages: 0.89 1.00 1.22 Math-Tuttle-OSX:279lect14-2 smtuttle$ w 15:23 up 14 days, 10:32, 18 users, load averages: 0.84 0.97 1.20 USER TTY FROM LOGIN@ IDLE WHAT smtuttle console - 15Nov12 14days - smtuttle s000 - 20Nov12 8days emacs 100hw smtuttle s001 - 15Nov12 51 emacs 279wo smtuttle s002 - Mon23 31 -bash smtuttle s003 - Wed11 17:34 -bash smtuttle s004 - 16Nov12 3:13 emacs 100wo smtuttle s005 - 16Nov12 1:21 emacs 235wo smtuttle s006 - Tue00 2days grotty smtuttle s007 - Tue08 58 ssh st10@nr smtuttle s008 - Tue12 1day emacs 100le smtuttle s009 - Wed14 22:10 emacs 279la smtuttle s010 - 9:50 4:37 ssh st10@nr smtuttle s011 - 12:22 2:50 -bash smtuttle s012 - Wed16 21:16 -bash smtuttle s013 - 12:35 1:21 emacs 100le smtuttle s014 - 15:05 1 emacs 279le smtuttle s015 - 15:06 6 ssh st10@nr smtuttle s016 - 15:22 - w Math-Tuttle-OSX:279lect14-2 smtuttle$ top <you don't see anything in this saved screen shot, but it resulted in a "live" full-screen output of the processes in order of CPU usage, updated frequently;. Math-Tuttle-OSX:279lect14-2 smtuttle$ IFS="+" Math-Tuttle-OSX:279lect14-2 smtuttle$ read var1 moo Math-Tuttle-OSX:279lect14-2 smtuttle$ echo $var1 moo Math-Tuttle-OSX:279lect14-2 smtuttle$ echo $IFS Math-Tuttle-OSX:279lect14-2 smtuttle$ read a b c d 3+7+9+12 Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$a> <$b> <$c> <$d>" <3> <7> <9> <12> Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "$IFS" + Math-Tuttle-OSX:279lect14-2 smtuttle$ echo $a 3 Math-Tuttle-OSX:279lect14-2 smtuttle$ read a b c d 3 4 5 6 Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$a> <$b> <$c> <$d>" <3 4 5 6> <> <> <> Math-Tuttle-OSX:279lect14-2 smtuttle$ read a b c d3+4+5+6+7+8+9+10+11 Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$a> <$b> <$c> <$d>" <3> <4> <5> <6+7+8+9+10+11> Math-Tuttle-OSX:279lect14-2 smtuttle$ emacs ifs-play.sh [1]+ Stopped emacs ifs-play.sh Math-Tuttle-OSX:279lect14-2 smtuttle$ ifs-play.sh nba please type in something, followed by enter: moonriverflowingtothesea <$first> is <moo> <$second> is <riverflowi> <$third> is <gtothese> <$fourth> is <> Math-Tuttle-OSX:279lect14-2 smtuttle$ ifs-play.sh '[0-9]' please type in something, followed by enter: moo-moo3skidoo23oink <$first> is <moo> <$second> is <moo3skidoo23oink> <$third> is <> <$fourth> is <> Math-Tuttle-OSX:279lect14-2 smtuttle$ ifs-play.sh "[0-9]" please type in something, followed by enter: moo-mooskidoo23oink <$first> is <moo> <$second> is <mooskidoo23oink> <$third> is <> <$fourth> is <> Math-Tuttle-OSX:279lect14-2 smtuttle$ fg emacs ifs-play.sh [1]+ Stopped emacs ifs-play.sh Math-Tuttle-OSX:279lect14-2 smtuttle$ source ifs-play.sh "- "please type in something, followed by enter: moo-oink la-la la <$first> is <moo> <$second> is <oink> <$third> is <la> <$fourth> is <la la> Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "$IFS" - Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <- > Math-Tuttle-OSX:279lect14-2 smtuttle$ ifs-play.sh moo please type in something, followed by enter: moomoomoomoo <$first> is <> <$second> is <> <$third> is <> <$fourth> is <moomoomoo> Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <- > Math-Tuttle-OSX:279lect14-2 smtuttle$ fg emacs ifs-play.sh [1]+ Stopped emacs ifs-play.sh Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <- > Math-Tuttle-OSX:279lect14-2 smtuttle$ source ifs-play.sh '*!' please type in something, followed by enter: how*now!brown*!cow <$first> is <how> <$second> is <now> <$third> is <brown> <$fourth> is <!cow> Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <*!> Math-Tuttle-OSX:279lect14-2 smtuttle$ fg emacs ifs-play.sh [1]+ Stopped emacs ifs-play.sh Math-Tuttle-OSX:279lect14-2 smtuttle$ fg emacs ifs-play.sh Math-Tuttle-OSX:279lect14-2 smtuttle$ IFS=";-" Math-Tuttle-OSX:279lect14-2 smtuttle$ read first second third fourth fifth sixth what;where-how now;brown-cow Math-Tuttle-OSX:279lect14-2 smtuttle$ echo [$first] [$second] [$third] [$fourth] [$fifth] [$sixth] [what] [where] [how now] [brown] [cow] [] Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <;-> Math-Tuttle-OSX:279lect14-2 smtuttle$ IFS="$IFS." Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "<$IFS>" <;-.> Math-Tuttle-OSX:279lect14-2 smtuttle$ read a b c moo.oink-la; Math-Tuttle-OSX:279lect14-2 smtuttle$ echo "$a $b $c" moo oink la Math-Tuttle-OSX:279lect14-2 smtuttle$