Mirror output to screen and file

bash

./deploy.sh 2>&1 | tee deploy.log

Explanation

Great for CI logs and manual runs.

Learn the surrounding workflow

Compare similar commands or jump into common fixes when this command is part of a bigger troubleshooting path.

Same sheet · prioritizing Logging and Output

Print timestamped log lines.

Open In sheetbashsame section

Use reusable stderr helpers for diagnostics.

Open In sheetbashsame section

Use env to locate Bash on PATH.

Create a secure temporary file.

Retry a command several times before giving up.

Resolve the directory of the current script.