regex - Replace one letter in string -


i have text file on unix:

[{"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000440}, {"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000441} ]

i need write regular expression sed tool find last symbol ] , replace , final rezult be:

[{"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000440}, {"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000441} ,

thanks in advance.

uodated. help, i've checked , workes fine, there situation when tag ] situated in same line expression.

[{"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000440}, {"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000441}]

copied comments

i have write regular expression doesn't work sed -i '$s/]$//'

sed 's/]$/,/'

should make it.

with $ indicate end of line.

test

$ echo "[{"creati]on_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000440}, {"creation_time":"2013-04-18 12:03:33","id":255,"type_id":100,"workflow":167000441} ]" | sed 's/]$/,/' [{creati]on_time:2013-04-18 12:03:33,id:255,type_id:100,workflow:167000440}, {creation_time:2013-04-18 12:03:33,id:255,type_id:100,workflow:167000441} ,

where can see if put other ] persist. (in creati]on_time)


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