awk matching::

[PSD]

Hi all,

The awk statement below nearly works as I want it to. That is it removes :: if it is on the end or beginning of the PATH variable, but :: anywhere else is not removed - however ::: is. So it is nearly there. Any awk experts able to shed light light on getting the :: removed rather than the ::: as it does now?

awk ' {
if(match($0,"^[\t ]*(set)*[\t ]*PATH[\t ]*=") != 0){
gsub("PATH[\t ]*=[\t ]*\\::","PATH=");
gsub("PATH[\t ]*=[\t ]*\"\\::","PATH=");
gsub(":\\::",":");
gsub(":\\:\"$","");
gsub(":\\:$","");
print $0;
}
else {
print $0;
}
}' ${1} > ${1}.work
mv ${1}.work ${1}

 

[LKBrwnDBA]

How about this?:

ThePATH=$1
echo $ThePATH|awk -F[:] '{for(i=1;i<=NF;++i){p=$i;if( p != "" ){op=op c p;c=":"}}} END {print op;}'

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