: How to reset the element IDs? I work with a lot of Matlab figures which were exported to SVG-files. Matlab produces a lot of garbage alongside the actual image (mainly invisible lines). So

@Kimberly620

You can perform the task with a simple awk-script.

Using a sample svg-file, searching for 'id=' I get:

grep "id=" sample.svg
id="svg2"
id="metadata8">
id="defs6">
id="clipPath3342">
id="circle3344"
id="namedview4"
showgrid="false"
id="image10"
id="path3348"
id="image3338"
id="path3337"


Now, with the awk-Script:

awk 'BEGIN { n=1;} /(Wid=[^0-9]+)/ { sub(/[0-9]+/, n, [CO])
++n
}
/.*/ { print }
' sample.svg | grep "id="


I get

id="svg1"
id="metadata2">
id="defs3">
id="clipPath4">
id="circle5"
id="namedview6"
showgrid="false"
id="image7"
id="path8"
id="image9"
id="path10"


Note, that 'showgrid' isn't touched. The grep command is used to supress all lines without 'id=' in them.

Awk is part of most unixoid systems and normally part of every Linux distribution, sometimes as gawk, mawk, etc. I guess it is part of OSX too and I know it is available for multiple Windows versions, but not part of them. But since it is open source, it is available for free.

To get the corrected file, pipe the output to a new file:

awk CODE sample.svg > corrected.svg


If you write the awk-code between the apostrophs to a file, you call it like this:

awk -f code-file.awk sample.svg > corrected.svg

Vote Up Vote Down