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Bash: Reading out rows of a file into a dynamic array and check first literal


 
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# 1  
Old 07-31-2009
Bash: Reading out rows of a file into a dynamic array and check first literal

Hello,

i have a file "Movie.ini" looking e.g. like follows

Code:
* MOVIE A
bla bla
MOVIE B
blubb blubb
MOVIE C

I'd like to read the file "Movie.ini" with cat and grep and check whether it includes the string MOVIE only with a '*' at the beginnig.

By doing
Code:
"cat Movie.ini| grep MOVIE >> tmp_MOVIE "

all rows containing MOVIE should be saved in a tempfile
Code:
* MOVIE A
MOVIE B
MOVIE C

I have following problem, since I just know a bit ksh but not bsh:

1. How can I read out the rows of the file "tmp_MOVIE" in a VARIABLE long / dynamic allocated array? (Since there is NOT a fix number of rows containing the string MOVIE - it can be 3, 5 or e.g. 20)
2. How can I check the first literal of an array-element whether it is a '*'?

Thanks a lot for any helpful answer

Please use CODE tags next time when displaying code, data or logs to enhance readability and to preserve formatting like indention etc., ty.

Last edited by zaxxon; 07-31-2009 at 12:37 PM.. Reason: code tags
# 2  
Old 07-31-2009
I believe that one grep would be sufficient:

Code:
grep '^* MOVIE' Movie.ini

# 3  
Old 07-31-2009
Hello Thanks,

I'll try it, but how can I handle assigning a dynamic number of stings into arrays?
# 4  
Old 07-31-2009
Why do you think you need an array?

Last edited by radoulov; 07-31-2009 at 05:35 PM..
# 5  
Old 07-31-2009
I want to read out ALL appearances of the string 'Movie' and check whether they ALL beginn with a '*'. So I think I need an array with a DYNAMIC number of fields since they number of 'Movie'-string varies.
# 6  
Old 07-31-2009
grep will search for the pattern specified in it ( "^ * MOVIE" in your case ) in the whole file and whenever it finds, it will print the whole line.

so you don't need array.

Code:
man grep

for more details. also
Code:
man regex

# 7  
Old 07-31-2009
But I think I need an array, because I want to check within a script if there is MOVIE without '*' and if there is a MOVIE without '*', a mail will be send. That part is already written and running, I just need a working if-clause.

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