remove ] followed by newline in bash

Shell Programming and Scripting
1

I need to remove ] followed by newline character to convert lines like:

line1]
line2

into:

line1line2

2

If you've got BASH you've got perl, so:

perl -i.bak -p -e 's/]\n//' FILE
3

using sed,

sed ':a;N;$!ba;s_]\n__g' <filename>
4

one more ..

$ sed  'N;s/]\n[ \t]*//' infile
line1line2
5

If you really need to handle using bash/ksh builtin properties, then

while read line
do
        case "$line" in
                *])  len=${#line}
                     ((len-=1))
                    line=${line:0:$len}
                    echo -n $line
                    ;;
                *) echo "$line" ;;
        esac
done <<EOF
line]
line2
line3
line4 here]
line5
EOF