[SOLVED] Bash sed replace until end of line

Issue

I have the following input file:

this is text
     identifier {
         item /directory/file_1234 
some more text 
item /directory/file_1234 other line text
     identifier {
         item /directory/98_76file
other line

I want to replace the stings item /directory/*, that come after the line identifier { with /directory/file_ABC

I tried

cat input | sed ':a;N;$!ba;s/    identifier {\n        item \/directory\/.*$/    identifier {\n        newitem \/directory2\/file_ABC/g'

but it erases the lines after the first occurrence

this is text
    identifier {
        newitem /directory2/file_ABC

Solution

Assuming you want to replace both occurances, you can use this sed

$ sed '/identifier {/{N;s~\(.*\n[^[:alpha:]]*\).*~\1newitem /directory/file_ABC~}' input_file
this is text
     identifier {
         newitem /directory/file_ABC
some more text
item /directory/file_1234 other line text
     identifier {
         newitem /directory/file_ABC
other line

Answered By - HatLess

Answer Checked By - Mary Flores (WPSolving Volunteer)