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Replace string B depending on occurence of string A

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# 1  
Old 12-05-2006
Bug Replace string B depending on occurence of string A
Depending upon the occurence of string 'xyz', I want to remove -t from the input file.
There is not a fixed length input file.
Any suggestions

Input file:

this is xyz line -t of the data
this is line 2 of -t of the data
xyz this is line 3 of -t the file
this is line xyz of the -t file
this is line 5 of the file -t

Ouput file:

this is xyz line of the data
this is line 2 of -t of the data
xyz this is line 3 of the file
this is line xyz of the file
this is line 5 of the file -t
# 2  
Old 12-05-2006
Code:
sed '/xyz/s/-t//' myFile

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