Soaks up all input from stdin and writes it to a file or stdout. Pipelines reading from and writing to the same file may be safely constructed.
grep [...] log.txt | sponge log.txt
go get git.sr.ht/~tslocum/sponge
sponge [-a] [file]: soak up all input from stdin and write it to [file] or stdout
Please share issues and suggestions here.
sponge was originally written in C by Tollef Fog Heen.