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The classic book "The UNIX Programming Environment" by Kernighan and Pike, has a tool in it, called 'overwrite', that does this - letting you safely overwrite a

by vram22 12y ago

The classic book "The UNIX Programming Environment" by Kernighan and Pike, has a tool in it, called 'overwrite', that does this - letting you safely overwrite a file with the result of a oommand or pipeline, IIRC.