I am going to rename image files and pdf files in a folder in Linux.
It should be recursively as some files are in sub-sub folder.
Current file name pattern is like:
an-yt-h-in-g-123word-123456-anything.jpg (.png .pdf)
My goal pattern is
123456-anything.jpg (.png .pdf)
In a short, I want to remove everything before -NumberString-, and keep everything afterwards (includes the NumberString).
Can anyone help? Thanks a lot
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Answer
This command will check position of last “number string” and output the sub string from this position to the end. You can change ls command to something else.
ls | awk -F '-' '{ for(i=NF; i>=0; i--) { if (match($i, /^[0-9]+$/)) { print $i; for (j=i+1; j<=NF; j++){ printf "-%s" ,$j }; print "n" } } }' $1 ORS=""