perl the complete reference second edition phần 2 docx

... 108 Perl: The Complete Reference $^T $BASETIME The time at which the script started running, defined as the number of seconds since the epoch. $^V $PERL_ VERSION The current revision, ... as a method 104 Perl: The Complete Reference $$ $PID $PROCESS_ID The process number of the Perl interpreter executing the current script. $< $UID $REAL_USER_ID The real...

Ngày tải lên: 13/08/2014, 22:21

... 1016 Contents xxvii xxxvi Perl: The Complete Reference What’s Changed Since the First Edition? Beyond the obvious updates and fixes for the newer versions of Perl, we’ve also changed the overall layout of this edition. ... advantages: Because there is no compilation process, the development of interpreted code should 8 Perl: The Complete Reference Introduction xxxi...

Ngày tải lên: 13/08/2014, 22:21

... that induced by $`. 25 8 Perl: The Complete Reference Chapter 8: Data Manipulation 23 3 FUNDAMENTALS The /o operator changes the way in which the regular expression engine compiles the expression. ... of papers. Index 0 of the array is the bottom of the stack, and the last element is the top. You can put new pieces of paper on the top of the stack (push), or put...

Ngày tải lên: 13/08/2014, 22:21

... deallocated. 338 Perl: The Complete Reference 364 Perl: The Complete Reference will not lock; but because they use the same send-receive system, once they have both sent information, they will both ... for the specified number of seconds. The granularity of the select call is hundredths of a second, so the call select(undef, undef, undef, 2. 35); will wait for 2. 35...

Ngày tải lên: 13/08/2014, 22:21

... or Win 32 systems. If you want to use this system, I suggest you refer to the man pages for more information on these functions. 478 Perl: The Complete Reference 4 82 Perl: The Complete Reference -c Checks ... processors—switching between 20 0 processes on a single CPU is not recommended because the amount of time given to each 496 Perl: The Complete Reference This...

Ngày tải lên: 13/08/2014, 22:21

... using the normal redirection operators within the shell; for example: $ roman.cgi 2& gt;roman.err 606 Perl: The Complete Reference 5 92 Perl: The Complete Reference Other fields in Table 18 -2 are ... defines the ASCII character code for the character in question. So the string “Martin Brown” would be translated into, Martin %20 Brown where 20 is the hexadecimal...

Ngày tải lên: 13/08/2014, 22:21

... '1' inhibit_exit = '1' 7 42 Perl: The Complete Reference The basic features of the ActivePerl debugger are essentially identical to those of the core Perl debugger, but it’s augmented ... shown in Table 21 -1. For others, refer to the perldebug man page. 740 Perl: The Complete Reference Option Description RecallCommand The character(s) used to r...

Ngày tải lên: 13/08/2014, 22:21

... compiling the perlmain.c file. The default is to use the value of $(CC). PERL_ ARCHLIB A string defining the libraries to be used for building the Perl binary. PERL_ LIB A string specifying the directory ... && die; }' 8 62 Perl: The Complete Reference 3. The XS file is parsed by xsubpp, producing the C file that contains the necessary functions: /us...

Ngày tải lên: 13/08/2014, 22:21

... files. References See O; Chapter 22 B::Stackobj A helper module for the Perl compiler. References See O; Chapter 22 B::Terse Used with the Perl compiler to provide the syntax tree for a Perl script. ... constructs in the Perl code. It is used as a backend to the Perl compiler. $ perl -MO=Lint foobar.pl References See O; Chapter 22 B::Showlex A Perl compiler backe...

Ngày tải lên: 13/08/2014, 22:21

... substituting underscores 11 02 Perl: The Complete Reference 1 124 Perl: The Complete Reference addhistory(EXPR) adds EXPR to the history of input lines. IN OUT returns the filehandles for input or ... 1090 Perl: The Complete Reference Constant Description _exit Exits the current process. abort Aborts the current script, sending the ABRT signal to the Perl...

Ngày tải lên: 13/08/2014, 22:21