[SOLVED] Extract certain lines from a Nginx version info

Issue

I need to extract the arguments from the Nginx version info I am getting the Nginx version info using the below command

nginx -V

I got the below output

nginx version: nginx/1.14.0 (Ubuntu)
built with OpenSSL 1.1.1  11 Sep 2018
TLS SNI support enabled
configure arguments: --with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-GkiujU/nginx- 
1.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time - 
D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fPIC' - 
-prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log- 
path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock- 
path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --modules-path=/usr/lib/nginx/modules -- 
http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp- 
path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp- 
path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with- 
pcre-jit --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module -- 
with-http_auth_request_module --with-http_v2_module --with-http_dav_module --with- 
http_slice_module --with-threads --with-http_addition_module --with- 
http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with- 
http_image_filter_module=dynamic --with-http_sub_module --with-http_xslt_module=dynamic -- 
with-stream=dynamic --with-stream_ssl_module --with-mail=dynamic --with-mail_ssl_module

I need to extract the below text from above output

--with-cc-opt='-g -O2 -fdebug-prefix-map=/build/nginx-GkiujU/nginx- 
1.14.0=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -Wdate-time - 
D_FORTIFY_SOURCE=2' --with-ld-opt='-Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,now -fPIC' - 
-prefix=/usr/share/nginx --conf-path=/etc/nginx/nginx.conf --http-log- 
path=/var/log/nginx/access.log --error-log-path=/var/log/nginx/error.log --lock- 
path=/var/lock/nginx.lock --pid-path=/run/nginx.pid --modules-path=/usr/lib/nginx/modules -- 
http-client-body-temp-path=/var/lib/nginx/body --http-fastcgi-temp- 
path=/var/lib/nginx/fastcgi --http-proxy-temp-path=/var/lib/nginx/proxy --http-scgi-temp- 
path=/var/lib/nginx/scgi --http-uwsgi-temp-path=/var/lib/nginx/uwsgi --with-debug --with- 
pcre-jit --with-http_ssl_module --with-http_stub_status_module --with-http_realip_module -- 
with-http_auth_request_module --with-http_v2_module --with-http_dav_module --with- 
http_slice_module --with-threads --with-http_addition_module --with- 
http_geoip_module=dynamic --with-http_gunzip_module --with-http_gzip_static_module --with- 
http_image_filter_module=dynamic --with-http_sub_module --with-http_xslt_module=dynamic -- 
with-stream=dynamic --with-stream_ssl_module --with-mail=dynamic --with-mail_ssl_module

I tried it using multiple approaches, but still can't find a way to do that

I have used the awk command like shown below

nginx -V | awk -F 'arguments:' '{print 2}'

Can someone please help me out here with this

Solution

I had to use a file write to get the values from the output I need

nginx -V &> test
awk -F'arguments:' '{print $2}' test

Hope this helps anyone looking for similar problem

Answered By - Ajinkya

Answer Checked By - Mary Flores (WPSolving Volunteer)