Read e-book online Minimal Perl For Unix And Linux People PDF

By Tim Maher

ISBN-10: 1932394508

ISBN-13: 9781932394504

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A consultant to a gently designed subset of the Perl language, this publication makes Perl extra obtainable to these having UNIX/Linux ability degrees starting from undemanding to professional through capitalizing on their current wisdom of significant utilities (grep, awk), or crucial suggestions (filters, command substitution, looping). Dozens of certain programming examples are proven, drawn from modern software components comparable to approach management, networking, internet improvement, databases, finance, HTML, CGI, and textual content research. damaged into components, the 1st is for all who're acquainted with middle UNIX/Linux instructions akin to grep and caters to readers starting from managers and administrative employees to complex programmers. the second one half is for builders skilled in Bourne, Korn, Bash, or POSIX Shell programming and makes Perl scripting effortless to benefit via exhibiting Shell examples besides their Perl opposite numbers. Many Perl modules are coated together with freely on hand pre-written code from the CPAN.

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29 Using switch variables . . . . . . . . . . . . . . . . . . . . . . . . . 33 Shell and Perl techniques for writing messages to STDOUT and STDERR . . . . . . . 36 Special variables for I/O operations . . . . . . . . . . . . . . . . . . . . 42 Special variables for formatting output . . . . . . . . . . . . . . . . . . . 43 Standard option clusters for Perl commands and scripts . . . . . . .

255 The if/else construct . . . . . . . . . . . . . . . . . . . . . . . . . 260 Nested if/else vs. elsif . . . . . . . . . . . . . . . . . . . . . . . 261 String operators for concatenation and repetition . . . . . . . . . . . . . . . 265 Command substitution/interpolation in the Shell and Perl . . . . . . . . . . . 270 Controlling and interrogating screen displays using tput options . .

309 Array of phone numbers for phone owners . . . . . . . . . . . . . . . . . 309 Storing phone numbers in a hash. . . . . . . . . . . . . . . . . . . . . 309 Syntax for using hashes in Perl. . . . . . . . . . . . . . . . . . . . . . 310 Syntax for basic and advanced hash indexing . . . . . . . . . . . . . . . . . 312 Common list generators in the Shell and their Perl counterparts . . . . . . . . . 10 Chapter 10 Looping-related differences between the Shell and Perl .

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Minimal Perl For Unix And Linux People by Tim Maher


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