This tutorial assumes no previous knowledge of scripting or programming yet progresses rapidly toward an intermediate advanced level of instruction all the while sneaking in little nuggets of unix r wisdom and lore it serves as a textbook a manual for self study and as a reference and source of knowledge on shell scripting techniques. Unix linux shell scripting programming tutorial advanced topics substrings often times a programmer needs to be able to get a substring from a variable at a given position. Click here to avail a subscription virtual training companys unix shell scripting advanced course is recommended for the more advanced user who has a working knowledge of basic unix shell operation this course describes how to create programs using the syntax and features of the unix shell focusing on the most popular the bourne shell
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