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lang-bash
ed?sed -ion the same file. Yes, you should add all the-ecommands you want into a singlesedinvocation (or even into asedscript file - seesed -f).edwould potentially also use temporary files.sed -idoes not take a long time to run due to creating temporary files. It takes a long time to run because you're executing it in a tight loop. Please show what you are actually doing.