From XML to CSV with command line

if I have a XML file on local disk, which command is need to convert file in CSV?

And from XLSX or XLS to CVS?

Thanks.

2 Answers

You can use xml2 utility () and starting in example from

<ANCFModel> <UNITS force="NEWTON" mass="KILOGRAM" length="MILLIMETER" time="SECOND"/> <GRID x="328.217224" y="543.844177" z="0.000000" rx="0.000000 -1.000000 0.000000" ry="1.000000 0.000000 0.000000" rz="0.000000 0.000000 1.000000"/> <GRID x="328.217224" y="518.844177" z="0.000000" rx="0.000000 -1.000000 0.000000" ry="1.000000 0.000000 0.000000" rz="0.000000 0.000000 1.000000"/> <GRID x="328.217224" y="493.844177" z="0.000000" rx="0.000000 -1.000000 0.000000" ry="1.000000 0.000000 0.000000" rz="0.000000 0.000000 1.000000"/> <GRID x="328.217224" y="468.844177" z="0.000000" rx="0.000000 -1.000000 0.000000" ry="1.000000 0.000000 0.000000" rz="0.000000 0.000000 1.000000"/> <GRID x="328.217224" y="443.844177" z="0.000000" rx="0.000000 -1.000000 0.000000" ry="1.000000 0.000000 0.000000" rz="0.000000 0.000000 1.000000"/> <BEAM12 pid="10000" g1="301019" g2="303001"/> <BEAM12 pid="10000" g1="303001" g2="303002"/> <BEAM12 pid="10000" g1="303002" g2="303003"/> <BEAM12 pid="10000" g1="303003" g2="301020"/> <PBEAML mid="3000000" type="BAR" dim1a="5.000000" dim2a="50.000000" dim1b="5.000000" dim2b="50.000000" nx="5" ny="3" nz="3" ngx="5" ngy="4" ngz="4"/> <MAT1 e="210000" nu="0.3" rho="7.86e-06" YS="0.001" AP="2"/> <CONN0 gid="301020" conn="TTTTTT"/> <CONN0 gid="301019" conn="TTTTTT"/> </ANCFModel> 

and running

xml2 < input.xml | 2csv GRID @id @x @y @z @rx @ry @rz 

you will have

+--------+------------+------------+----------+-----------------------------+----------------------------+----------------------------+ | 301019 | 328.217224 | 543.844177 | 0.000000 | 0.000000 -1.000000 0.000000 | 1.000000 0.000000 0.000000 | 0.000000 0.000000 1.000000 | | 303001 | 328.217224 | 518.844177 | 0.000000 | 0.000000 -1.000000 0.000000 | 1.000000 0.000000 0.000000 | 0.000000 0.000000 1.000000 | | 303002 | 328.217224 | 493.844177 | 0.000000 | 0.000000 -1.000000 0.000000 | 1.000000 0.000000 0.000000 | 0.000000 0.000000 1.000000 | | 303003 | 328.217224 | 468.844177 | 0.000000 | 0.000000 -1.000000 0.000000 | 1.000000 0.000000 0.000000 | 0.000000 0.000000 1.000000 | | 301020 | 328.217224 | 443.844177 | 0.000000 | 0.000000 -1.000000 0.000000 | 1.000000 0.000000 0.000000 | 0.000000 0.000000 1.000000 | +--------+------------+------------+----------+-----------------------------+----------------------------+----------------------------+ 

I assume you'd like to convert spreadsheet(-like) xml files. Then it looks like the Gnumeric package can do what you need.
To install it:

sudo apt install gnumeric 

It provides the CLI utility ssconvert which is, as the manpage says,

a command line spreadsheet format converter

To use it:

ssconvert SOURCE_FILE DEST_FILE 

If instead you want a more "generic XML to CSV converter", I cannot think of a pre-packaged tool installable in Ubuntu.
A quick googling suggest this GitHub repository. It's java based, but it should work ok in Ubuntu.