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Top Forums Shell Programming and Scripting Is it possible in a shell script to modify itself ?? Post 67371 by aselby on Tuesday 22nd of March 2005 09:34:08 PM
Old 03-22-2005
why is it necessary to modify the script?
this is a PPP.

just put the date in a file, date>RunTimeFile, at the end of each run and read it the next time you run the script, e.g.:
last_run_time=$(cat RunTimeFile)

this assumes that there is never more than 1 instance of the script running.
 

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QUIZ(6) 							   Games Manual 							   QUIZ(6)

NAME
quiz - test your knowledge SYNOPSIS
/usr/games/quiz [ -i file ] [ -t ] [ category1 category2 ] DESCRIPTION
Quiz gives associative knowledge tests on various subjects. It asks items chosen from category1 and expects answers from category2. If no categories are specified, quiz gives instructions and lists the available categories. Quiz tells a correct answer whenever you type a bare newline. At the end of input, upon interrupt, or when questions run out, quiz reports a score and terminates. The -t flag specifies `tutorial' mode, where missed questions are repeated later, and material is gradually introduced as you learn. The -i flag causes the named file to be substituted for the default index file. The lines of these files have the syntax: line = category newline | category `:' line category = alternate | category `|' alternate alternate = empty | alternate primary primary = character | `[' category `]' | option option = `{' category `}' The first category on each line of an index file names an information file. The remaining categories specify the order and contents of the data in each line of the information file. Information files have the same syntax. Backslash `' is used as with sh(1) to quote syntacti- cally significant characters or to insert transparent newlines into a line. When either a question or its answer is empty, quiz will refrain from asking it. FILES
/usr/games/quiz.k/* BUGS
The construct `a|ab' doesn't work in an information file. Use `a{b}'. 7th Edition May 20, 1985 QUIZ(6)
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