I've got several large files that require some repetitive multiline search and replace operations, and I feel sure that sed can do this, but I can't figure out how to do it.
The pattern I'm searching for in the input file is "Type=0x21" followed by "Label=abcde" on the next line, where abcde is a 5 character number with leading spaces. If abcde is a multiple of 100, (d=0, e=0) I want to replace the first line with "Type=0x22", and add a third line "EndLevel=1" For example: BEFORE: AFTER: Type=0x21 Type=0x21 # No change required because Label= 120 Label= 120 # Label not multiple of 100 blah, blah blah, blah Type=0x21 Type=0x22 # Change Type value Label= 100 Label= 100 blah, blah EndLevel=1 # Insert extra line blah, blah Type=0x21 Type=0x22 # Same as previous except Label= 2200 Label= 2200 # different value for Label blah, blah EndLevel=1 blah, blah The bit that's got me stumped is how to handle the Label line. Can someone please give me hint how to do this? Tom