AWK problem need help

Hi,
I am trying out an "AWK" script, to search and modify some pattern in
text file.
The script is as follows:

NR<100 {
if ( ( $6 ~ /^(x|X)/ ) || ( $4 ~ /^(x|X)/ ) ) {
printf ("PAT:%s\n", $prev)
print NR, $0
z = split($prev, lastline, " ")
if ( lastline[0] ~ /^\/\// ) {
print NR >> "bin/output.atp"
}
if ( lastline[0] ~ /repeat/ ) {
print NR, NR >> "bin/output.atp"
} else {
print NR, NR, NR >> "bin/output.atp"
}
} else {
print $0 >> "bin/output.atp"
prev = $0
}
}


My observation here is:
In else part (i.e. when I dont get the regx match, I am trying to
store the line read) in a variable, and I wnated to use it later. But
when I try printing the variable "prev" next time when I have "regx"
match, it displays the current line i.e. $0 itself

Please suggest some alternative to store the previously read line.

Akhil

.

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