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Awk match a multiline pattern


 
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# 8  
Old 10-13-2009
Try this:

Code:
sed -n '/^CACHE_SIZE/  N;/\n10000 M/ N;/\n}/p; ' filename

# 9  
Old 10-13-2009
Thanks but i need to use awk dennis, and i think that i can't use getline zaxxon, because i have a config file like this:

Code:
CACHE SIZE{
cache_size=1000M
}

CRONTAB{
crontab=1 12 2 10 5
}

POLITICS{
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M
}

3 differents structures in my config file and besides this, i'm reading this config file with an awk script "read_conf.awk" like this:

Code:
BEGIN {FS = "\t"
print "Starting to read the config file"
num=0;
bucle=0;

}
# first regexp
/^[0-9]*[\%|M|K|G][C|F]\t[A-Za-z|\,]*\t[\<|\>|\=][0-9]*[K|M|G]\t[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9][M|K|G]$/     {

instructions...

}

#second regexp
/^cache_size=[0-9]*[K|M|G]/     {

instructions...

}

#third regexp
/crontab=[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*/ {

instructions...

}

Everyone of this regexp read the values between {...}, but i need to read
with the head and the end, in this case: "POLITICS{" and "}"
The structure "head", "regexp", "end"

Code:
POLITICS{
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M
}

I explain me correctly?

Thanks
# 10  
Old 10-14-2009
Try this

infile: -

Code:
123M     xls     <670K
234K     doc    >800K
 
dummy{
10N
}
 
CACHE_SIZE{
1000M
}

Code:
nawk ' /CACHE_SIZE{/{bo = 1}(/}/)&&(bo){print;exit}bo ' infile

Gives output: -

Code:
CACHE_SIZE{
1000M
}

Hope it helps Smilie

---------- Post updated at 10:17 PM ---------- Previous update was at 08:22 PM ----------

Is this what you need?

Code:
TX5XN:/home/brad/forum/claw82>cat infile
CACHE SIZE{
cache_size=1000M
}

CRONTAB{
crontab=1 12 2 10 5
}

POLITICS{
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M
}


TX5XN:/home/brad/forum/claw82>nawk ' /CACHE SIZE{/,/}/;/CRONTAB{/,/}/;/POLITICS{/,/}/ ' infile

CACHE SIZE{
cache_size=1000M
}
CRONTAB{
crontab=1 12 2 10 5
}
POLITICS{
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M
}



---------- Post updated 14-10-09 at 10:04 AM ---------- Previous update was 13-10-09 at 10:17 PM ----------

Looking at your awk script I think you probably need to edit it to something like this: -
Code:
nawk ' BEGIN {FS = "\t"        print "Starting to read the config file"        num=0;        bucle=0;} /POLITICS{/,/}/{        print        if( $0 ~ /^[0-9]*[\%|M|K|G][C|F]\t[A-Za-z|\,]*\t[\|\=][0-9]*[K|M|G]\t[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9][M|K|G]$/ ) {                print "Instructions for politics"        }}  /CACHE SIZE{/,/}/{        print        if($0 ~ /^cache_size=[0-9]*[K|M|G]/ ) {                print "Instructions for cache size"        }} /CRONTAB{/,/}/{        print        if( $0 ~ /crontab=[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*/ ) {                print "Instructions for crontab"        }} ' infile

This gives the output: -
Code:
Starting to read the config fileCACHE SIZE{cache_size=1000MInstructions for cache size}CRONTAB{crontab=1 12 2 10 5Instructions for crontab}POLITICS{100MF   doc,docx,xls    300M   03/03/02/03/05K65%F    mpg     =000M   02/02/02/05/05M}

Hope that looks ok I cannot get the web form to enter the code tags for me so am doing them from memory.Please note that your pattern for the POLITICS stuff does not seem to work.Cheers

---------- Post updated at 10:07 AM ---------- Previous update was at 10:04 AM ----------

I can't get the formating to work, will have to wait till I get home tonight before I can post this properly. Smilie
# 11  
Old 10-14-2009
In the third part i think that you understood that i wanna do, but i think it's better for me to work with your seconds answer, because i only need to print or save in variables the values between {...}, but controlling that they are headed with something like CACHE_SIZE{

What means /,/ in your code?
# 12  
Old 10-14-2009
Still not 100% sure what you want as you have not given a complete output but take a look at this and tell me how close we are: -

OUTPUT: -

Code:
Starting to read the config file
CACHE SIZE{
cache_size=1000M
Instructions for cache
}
CRONTAB{
crontab=1 12 2 10 5
Instructions for crontab
}
POLITICS{
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M
}

CODE: -
Code:
TX5XN:/home/brad/forum/claw82>cat claw
nawk '

BEGIN {FS = "\t"
    print "Starting to read the config file"
    num=0
    bucle=0
}


/CACHE SIZE{/,/}/ {
    print
    if(  $0 ~ /^cache_size=[0-9]*[K|M|G]/ ){
        print "Instructions for cache"
    }
}

/CRONTAB{/,/}/ {
    print
    if ( $0 ~ /crontab=[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*/ ) {
        print "Instructions for crontab"
    }
}

/POLITICS{/,/}/ {
    print
    if ( $0 ~ /^[0-9]*[\%|M|K|G][C|F]\t[A-Za-z|\,]*\t[\<|\>|\=][0-9]*[K|M|G]\t[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9][M|K|G]$/ ) {
        print "Instructions for politics"
    }
}

' infile

The expression: -

Code:
/CACHE SIZE{/,/}/

Means read from the pattern /CACHE SIZE{/ to the pattern /}/ as I learned yesterday on this forum. Within that range of lines we then have an if statement matching the patterns you supplied, although as I said one of them does not seem to work.

If this is not what you are looking for then copy my output above and change it to show what you are trying to achieve exactly.

Cheers
# 13  
Old 10-15-2009
Ok, my output must be something like this:
Code:
for CACHE_SIZE:
1000M

for CRONTAB:
1 12 2 10 5

for POLITICS:
100MF   doc,docx,xls    <5600K  02/04/02/02/02K
55MF    jpg     >300M   03/03/02/03/05K
65%F    mpg     =000M   02/02/02/05/05M

This 3 outputs will be in 3 differents executions or readings with my awk script.

I think maybe with this "/CACHE SIZE{/ to the pattern /}/" i can read the values between the {...} and apply another regexp for know if the content matches with this regexp, what do you think about?

Thanks

Last edited by zaxxon; 10-15-2009 at 05:28 AM.. Reason: code tags ^^
# 14  
Old 10-15-2009
This gives the output you suggest.

I have marked the places you should insert your code, they are inside the if statements containing the regular expressions you posted.

Code:
nawk '

BEGIN {FS = "\t"
    printf("%s\n\n", "Starting to read the config file")
    num=0
    bucle=0

}


/CACHE SIZE{/,/}/ {
    if ( $0 ~ /CACHE SIZE{/ ){
        printf("%s\n", "for CACHE SIZE:")
        next
    }
    if( $0 ~ /}/)
        next
    split($0, a, "=")
    printf("%s\n", a[2])
    if(  $0 ~ /^cache_size=[0-9]*[K|M|G]/ ){

        ## YOUR CODE HERE
        printf("%s\n\n", "Instructions for cache")
    }
}

/CRONTAB{/,/}/ {
    if ( $0 ~ /CRONTAB{/ ){
        printf("%s\n", "for CRONTAB:")
        next
    }
    if( $0 ~ /}/)
        next
    split($0, a, "=")
    printf("%s\n", a[2])
    if ( $0 ~ /crontab=[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*\t[0-9]*|\*/ ) {

        ## YOUR CODE HERE
        printf("%s\n\n", "Instructions for crontab")
    }
}

/POLITICS{/,/}/ {
    if ( $0 ~ /POLITICS{/ ){
        printf("%s\n", "for POLITICS:")
        next
    }
    if( $0 ~ /}/)
        next
    print
    if ( $0 ~ /^[0-9]*[\%|M|K|G][C|F]\t[A-Za-z|\,]*\t[\<|\>|\=][0-9]*[K|M|G]\t[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9]\/[0-9][0-9][M|K|G]$/ ) {

        ## YOUR CODE HERE
        print "Instructions for politics"
    }
}

' infile


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