the sed language allows conditional jumps to labels. That makes it powerful enough to write programs in.
If you had to just write programs by running a series of sed substitution expressions to a file over and over, and not use conditionals... it might still be possible to program in. Much harder to think about, though.
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the sed language allows conditional jumps to labels. That makes it powerful enough to write programs in.
If you had to just write programs by running a series of sed substitution expressions to a file over and over, and not use conditionals... it might still be possible to program in. Much harder to think about, though.