CODEWITHSUNDEEP
linuxappendrheltee
Tarlak333
Tarlak333

Reputation: 1

tee -a command not appending to file in stringed commands

I have the following command that works fine however writing this command in a "more proper" manner, the tee -a fails to append each line to the .log file. (Instead it overwrites the file with only the last tee output) I'm just curious as to why the tee -a isn't working as expected in the 2nd example below.

OS: RHEL 8.9 (Shell: zsh)

Properly displays output and appends all three commands to file:

date >> ./net.log | tee && ifconfig | awk 'NR == 4' >> ./net.log | tee && ifconfig | awk 'NR == 6' >> ./net.log | tee

Properly displays output but does not append to file (overwrites file with last command only):

date | tee -a ./net.log && ifconfig | awk 'NR == 4' | tee -a ./net.log && ifconfig | awk 'NR == 6' | tee -a ./net.log

Upvotes: -2

Views: 70

Answers (1)

SPC0nline
SPC0nline

Reputation: 39

you are almost there. try the following

(date && ifconfig | awk 'NR == 4' && ifconfig | awk 'NR == 6') | tee -a ./net.log

Upvotes: 0

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