CODEWITHSUNDEEP
bashshellnpm
sfletche
sfletche

Reputation: 49714

Write output of `npm run start` to a file

I'd like to capture the output of npm run start in a file (I'm getting a ton of errors and I'd like to have more control over how I sift through the output).

When I try 

npm run start > log.txt

I get a very abbreviated file (8 lines) that ends with [34mℹ[39m [90m｢wdm｣[39m: Failed to compile.

When I try 

npm run start &> log.txt // redirect stderr and stdout to a file

I get a similarly abbreviated file (11 lines) that ends with similarly garbled output.

What am I missing?

Upvotes: 30

Views: 22788

Answers (2)

Avinash Yadav
Avinash Yadav

Reputation: 916

This will work

npm run start 2>&1| tee npm.txt

Explanation:

2>&1 will redirect error stderr to stdout and tee command will write terminal output to file.

Upvotes: 44

Mon
Mon

Reputation: 1110

what worked for me:

npm start >> log.txt 2>> log.txt

>> log.txt to redirect stdout to the file

2>> log.txt to redirect stderr to the file

others use the shorthand &>> for both stdout and stderr but it's not accepted by both my mac and ubuntu :(

extra: > overwrites, while >> appends

Upvotes: 9

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