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Add sed using 1 { ... }.
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* Right click the MMain module, then select Startup class from the context menu
=={{header|sed}}==
A <code>sed</code> program repeats itself for each line of input, but your program can begin with commands that address line 1. (This requires that your input has a line 1. If your input is empty file, like <code>/dev/null</code>, then it is impossible to run commands.)
<lang sed># This code runs only for line 1.
1 {
i\
Explain-a-lot processed this file and
i\
replaced every period with three exclamation points!!!
i\
}
# This code runs for each line of input.
s/\./!!!/g</lang>
=={{header|Visual Basic}}==
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