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 corresponding sed 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, as you’ll see in section 8.7. Ta b l e 4 . 6 sed and Perl commands for common editing...

Ngày tải lên: 06/08/2014, 03:20

... integers 111 10 19 88 43 55 81 23 04 40 12 2 1 2 1 10 91 88 43 55 18 23 40 17 21 000 $ intra_line_sort integers 1 2 04 10 12 19 23 40 43 55 81 88 111 000 1 2 10 17 18 21 23 40 43 55 88 91 The effect ... integers 111 10 19 88 43 55 81 23 04 40 12 2 1 <- Original 1 2 04 10 12 19 23 40 43 55 81 88 111 <- Sorted 2 1 10 91 88 43 55 18 23 40 17 21 000 <- Original 000 1 2 10...

Ngày tải lên: 06/08/2014, 03:20

... xxxv Part 1 Minimal Perl: for UNIX and Linux Users 1 1 Introducing Minimal Perl 3 1.1 A visit to Perlistan 3 Sometimes you need a professional guide 5 1.2 Perl can be simple 7 1.3 About Minimal Perl ... script 40 8 File::Find—the check_symlinks script 41 1 CGI—the survey.cgi script 41 4 ✦ Tips on using Object-Oriented modules 42 2 12 .4 Summary 42 4 Directions for...

Ngày tải lên: 25/03/2014, 10:27

... script 40 8 File::Find—the check_symlinks script 41 1 CGI—the survey.cgi script 41 4 ✦ Tips on using Object-Oriented modules 42 2 12 .4 Summary 42 4 Directions for further study 42 5 epilogue 42 6 appendix ... Minimal Perl 3 1.1 A visit to Perlistan 3 Sometimes you need a professional guide 5 1.2 Perl can be simple 7 1.3 About Minimal Perl 7 What Minimal Perl isn’t 8...

Ngày tải lên: 06/08/2014, 03:20

... humble DOS. STANDARD OPTION CLUSTERS 45 Table 2.9 Standard option clusters for Perl commands and scripts Primary option cluster Application type Example a -wl Output generation perl –wl –e ... understood or maintained, and there are always concise yet readable alternatives that are more prudent choices. To make Perl easier for Unix people to learn, Minimal Perl fa...

Ngày tải lên: 06/08/2014, 03:20

... FAQ 89 CHAPTER 4 Perl as a (better) sed command 4. 1 A brief history of sed 89 4. 2 Shortcomings of sed 91 4. 3 Performing substitutions 93 4. 4 Printing lines by number 100 4. 5 Modifying templates 101 4. 6 ... case differences Matches perl , PERL , Perl , and so on in $data. $data =~ / perl /xi Same, except x requests extended syntax Matches perl , PERL , Perl , and so...

Ngày tải lên: 06/08/2014, 03:20

... [a-f0-9][a-f0-9]){20}' Oops: 0001 Code: 89 50 24 89 02 c7 43 24 00 00 00 00 89 1c 24 c7 44 24 04 ff Oops: 0002 Code: 89 50 04 89 02 c7 46 04 00 00 00 00 c7 06 00 00 00 00 d1 64 Satisfied with his result, Felix ... installing Perl (and therefore find 2perl) , such people can use find commands like those shown previously. The procedure is as follows. The find 2perl c...

Ngày tải lên: 06/08/2014, 03:20

... Reuters.txt" 40 41 $debug and warn "Command is:\n\t$command\n\n" and 42 $command="set -x; $command"; # enable Shell execution trace 43 44 system $command; # format to fit on screen 45 ... for match 40 if ( $@ ne "" ) { # show eval's error 41 warn "\n$0: Eval failed for pattern: '$matcher'\n\n"; 42 die " ;Perl sa...

Ngày tải lên: 06/08/2014, 03:20

... 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 from ... 14) and then to reset $initializing to a False value, set the appropriate input record separator for the user-interaction phase, and prompt the user for input. Line 26 obtai...

Ngày tải lên: 06/08/2014, 03:20

... remove files ( rm_files, section 10 .4. 1) and to perform text substitutions for deciphering acronyms in email messages ( expand_acronyms, section 10 .4. 4). The relatively complex for loop should be used in ... 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/ma...

Ngày tải lên: 06/08/2014, 03:20