Dump the resolved NGINX configuration
Build a paste-ready command, then review its compatibility and effects before running it.
nginx -T 2>&1 | head -30read-onlyno known side effects Compatibility
LinuxVerified for Linux using posix, bash, zsh syntax.
Operational knowledgereview due 2027-01-20
Requirementsnginxnginx must be installed and available on PATH.
Version supportnginx Current supported releasesVerified for linux using posix, bash, zsh syntax; consult compatibility notes for platform-specific differences.
Expected signalsnginx: the configuration file /etc/nginx/nginx.conf syntax is okRepresentative successful output; values vary with the selected target and system state.
Known errorsnginx: command not foundnginx is missing or is not available on PATH.
Verifynginx -T 2>&1 | head -30The output matches the expected target and exits without an error.Rollback noteNot required: this command is read-only and does not change system state.
Command breakdown
01nginxCommandRuns the nginx stage of this one-liner.
02-TOptionConfigures nginx with the -T option.
032>&1RedirectionRedirects command input, standard output, or error output.
04|PipelinePasses the output on the left to the command on the right.
05headCommandRuns the head stage of this one-liner.
06-30OptionConfigures head with the -30 option.
Example input
nginx -T 2>&1 | head -30
Example output
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
# configuration file /etc/nginx/nginx.conf:
user www-data;
worker_processes auto;
Illustrative output — exact values vary by system and data.
Official sources