3 ms·
Use sponge! https://linux.die.net/man/1/sponge https://linux.die.net/man/1/sponge awk '!n[$0]++' fileName | sponge fileName
by gcmeplz 7y ago
Use sponge! https://linux.die.net/man/1/sponge https://linux.die.net/man/1/sponge
awk '!n[$0]++' fileName | sponge fileName