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Minimal Perl For UNIX and Linux People 5 pot

Serial port programming for Windows and Linux

Serial port programming for Windows and Linux

... Reading and WritingAfter the port is open and configured, a program cansend and receive data through it. In both Windows and Linux the serial port is treated as a file, and the file read and write ... were reador written applies.6 Serial Port Programming in Windows and Linux Maxwell WalterNovember 7, 2003AbstractWhile devices that use RS−232 and the serial port tocommunicate are becoming ... program and theaccuracy of the data.3.3.1 Windows Reading and writing to a serial port in Windows isvery simple and similar to reading and writing to afile. In fact, the functions used to read and...
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Tài liệu Unix and Linux Backups for System Administrators pptx

Tài liệu Unix and Linux Backups for System Administrators pptx

... write one now rather than wait for a crisis to convince you of its value. 1 Unix and Linux Backups SANS GIAC LevelOneâ 2000, 20011 Unix and Linux Backups for System Administrators By Robert BladerHello, ... much less stressful later. 21 Unix and Linux Backups SANS GIAC LevelOneâ 2000, 200121dd Examples - Forensicsã Files AND filesystem metadata are saved for forensics study ã Files that might ... order to get any useful information. 32 Unix and Linux Backups SANS GIAC LevelOneâ 2000, 200132Securityã Need to be able to do an image backup for forensics and to assess damageã Running...
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minimal perl for unix and linux people - manning 2006

minimal perl for unix and linux people - manning 2006

... xxxvPart 1 Minimal Perl: for UNIX and Linux Users 11 Introducing Minimal Perl 31.1 A visit to Perlistan 3Sometimes you need a professional guide 51.2 Perl can be simple 71.3 About Minimal Perl ... A Unix- like, OS-portable find command 198Making the most of find 2perl 198 ✦ Helping non -Unix friends with find 2perl 1996.8 Summary 200Directions for further study 201Part 2 Minimal Perl: ... Minimal Perl and removed only in the rare cases where itspoils the results. It’s shown here for both the sed and perl commands for uniformity. WRITING SIMPLE SCRIPTS 33$ award_cruises2 -perlistan='kryten'...
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Handbook of mathematics for engineers and scienteists part 5 potx

Handbook of mathematics for engineers and scienteists part 5 potx

... stands for the union of sets A and B∩ intersection (Boolean multiplication); A ∩B stands for the intersection (com-mon part) of sets A and B⊂ inclusion; A ⊂ B means that the set A is part of ... of numbers a and b is denoted by a + b and has the propertya + b = b + a– minus sign; the difference of numbers a and b is denoted by a – b⋅ multiplication sign; the product of numbersa and ... Alexei Zhurov for fruitful discussions and valuable remarks. We also appreciate the help of Vladimir Nazaikinskii and GrigoriiYosifian for translating several chapters of this book and are thankful...
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Minimal Perl For UNIX and Linux People 1 ppsx

Minimal Perl For UNIX and Linux People 1 ppsx

... Minimal Perl 3 1. 1 A visit to Perlistan 3Sometimes you need a professional guide 5 1. 2 Perl can be simple 7 1. 3 About Minimal Perl 7What Minimal Perl isn’t 8 ✦ What Minimal Perl is 8 1. 4 Laziness ... Perlistan 3 1. 2 Perl can be simple 7 1. 3 About Minimal Perl 7 1. 4 Laziness is a virtue 9 1. 5 A minimal dose of syntax 10 1. 6 Writing one-line programs 11 1. 7 Summary 14 Perl is a great language, with ... collect and process input6Further details on creating Perl commands and scripts are provided in sections 2 .1 and 2.4. xii5 Perl as a (better) awk command 12 15 .1 A brief history of AWK 12 25.2...
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Minimal Perl For UNIX and Linux People 2 doc

Minimal Perl For UNIX and Linux People 2 doc

... routinely in Minimal Perl and removed only in the rare cases where itspoils the results. It’s shown here for both the sed and perl commands for uniformity. WRITING SIMPLE SCRIPTS 37The second form ... "msg" formatvalidate_file2: Sorry, no switches allowed at validate_file2 line 6Table 2. 6 Shell and Perl techniques for writing messages to STDOUT and STDERRShell Perl Commentsecho ... glance. 42 CHAPTER 2 PERL ESSENTIALS 2. 5 ADDITIONAL SPECIAL VARIABLES Perl has a few other special variables that are used in part 1, which we’ll documenthere for reference purposes, and discuss...
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Minimal Perl For UNIX and Linux People 3 pot

Minimal Perl For UNIX and Linux People 3 pot

... characters) that stands for something other than itself. 3 The word characters are defined later, in table 3. 5. 68 CHAPTER 3 PERL AS A (BETTER) grep COMMANDThe following command looks for matches ... delimitersMatches perl in $_.$data =~ /perl/ i Looks for a match with perl in $data, ignoring case differencesMatches perl , PERL , Perl , and so on in $data.$data =~ / perl /xi Same, except x requests ... backslash.$data =~ m% perl # PeRl too! %xiSame, except adds a #-comment and uses % as a delimiterMatches perl , PERL , Perl , and so on in $data. Whitespace characters and #-comments within...
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Minimal Perl For UNIX and Linux People 4 ppt

Minimal Perl For UNIX and Linux People 4 ppt

... was so easily incorporated into the Perl script. For reference purposes, table 4. 6 provides a handy summary of the correspondingsed and perl commands that perform basic editing tasks, along with ... more, Perl s Shell-inspired eval function can be used for much more than substitutions, asyou’ll see in section 8.7.Ta b l e 4 . 6 sed and Perl commands for common editing activitiessed command Perl ... between AWK and Perl that were touchedon in the preceding discussion and in the comparisons of tables 5.1 and 5.2.Ways in which Perl is superior to AWK Perl alone (see tables 5.1 and 5.2) provides...
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Minimal Perl For UNIX and Linux People 5 pot

Minimal Perl For UNIX and Linux People 5 pot

... # Check for proper invocation 9 $amount and $rate or warn "$Usage\n" and exit 255 ;10 11 $pct_rate=$rate/100; # 5 becomes . 05 12 $multiplier=1 + $pct_rate; # . 05 becomes 1. 05 13 # ... installing Perl (and therefore find 2perl) , such people can use findcommands like those shown previously.The procedure is as follows. The find 2perl command is run with optionsappropriate for the ... sed command, and some file operators vs. options of thefind command. A UNIX- LIKE, OS-PORTABLE find COMMAND 199cutting and pasting its output into delete commands in a cmd.exe window? Fortu-nately,...
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Minimal Perl For UNIX and Linux People 6 pptx

Minimal Perl For UNIX and Linux People 6 pptx

... similarities and differences in how data flows between com-mands and functions.7.3.1 Comparing Unix pipelines and Perl functions Although there are distinct similarities between Unix command pipelines ... relatives in Unix Built-in Perl function Unix relative(s) Purpose Effectssort The Unix sort command List sorting Takes a list, and returns a sorted list.reverse Linux s tac command List reversal ... rand; you’ll see it used to select random “fortunes” in section 9.1.4.As the counterpart to the Unix sort command, Perl has its own function calledsort. But Perl s version is unique in giving...
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Minimal Perl For UNIX and Linux People 7 potx

Minimal Perl For UNIX and Linux People 7 potx

... ãman perlop # operators, and command interpolationãman perlsyn # basic syntax, including if/elseãman tput # command that retrieves terminal informationãman Term::ANSIColor # module for coloring ... treatment. For help in spotting these syntax errors and others, try running your code througha beautifier. You can learn about and download the standard Perl beautifier fromhttp://perltidy.sourceforge.net. 7 As ... eliminates the most common need for it 7 To learn about the first Perl beautifier, see http://TeachMePerl.com /perl_ beautifier.html.Table 8.5 String operators for concatenation and repetition Name Symbol...
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Minimal Perl For UNIX and Linux People 8 docx

Minimal Perl For UNIX and Linux People 8 docx

... }NOTE The Shell’s for loop is similar to Perl s foreach loop, not Perl s for loop.10.5 LOOPING WITH for Although the Shell’s for is like Perl s foreach, Perl does have a for loop of its own,derived ... FACILITIES IN THE SHELL AND PERL 331But adventurous Shell programmers will eventually encounter standard Unix commands that don’t work this way. For example, both tr and col1 are designed ... http://TeachMePerl.com/DQs_in_shell_vs _perl. html for details on the comparative use of doublequotes in the two languages. USING ARRAY VARIABLES 30727 printf $fortunes[ $index ]; # print random fortune 28 delete $fortunes[...
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Minimal Perl For UNIX and Linux People 9 potx

Minimal Perl For UNIX and Linux People 9 potx

... missing from Perl . Table 10 .9 The Shell’s select loopselect var ; do commands; done # Form 0select var in LIST; do commands; done # Form 1Ta b l e 10 . 1 0 T h e select loop for Perl use Shell::POSIX::Select;select ... conf commands specify your HOME directory’s myperl/lib (for library)subdirectory as the storage location for the modules you install, and HOME’s subdirec-tory myperl/man as the location for storing ... list.Some of the major forms of Perl s select loop are shown in table 10.10. Thesetake their inspiration from the Shell and then add enhancements for greater friendli-ness and, well, Perlishness.As...
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Minimal Perl For UNIX and Linux People 10 pdf

Minimal Perl For UNIX and Linux People 10 pdf

... xxv for loop 345–349good for index-oriented array processing 345 for loop (Perl) syntax of 345 for loop (Shell) 331compared to Perl s foreach 340foreach loop 340–344compared to Shell’s for ... 189See also command interpola-tioncommands (AWK) for printing rock-star birthdays 130 Perl equivalents for simple tasks 141simple ones compared to Perl equivalents 128commands (Perl) a one-line ... 196find commandas aid for finding misplaced files 179as argument pre-processor for Perl 197–198as emulated by find 2perl 198–200augmenting with Perl 183–184enhancing by adding Perl command 179-exec...
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minimal perl for unix and linux people (2005)

minimal perl for unix and linux people (2005)

... Minimal Perl Minimal Perl For UNIX and Linux People BY TIM MAHERMANNINGGreenwich(74° w. long.) For online information and ordering of this and other Manning books, ... for all the good times we’ve had together.viibrief contentsPart 1 Minimal Perl: for UNIX and Linux Users 11 Introducing Minimal Perl 32 Perl essentials 163 Perl as a (better) grep command ... (better) grep command 534 Perl as a (better) sed command 895 Perl as a (better) awk command 1216 Perl as a (better) find command 178Part 2 Minimal Perl: for UNIX and Linux Shell Programmers...
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