bash - Prepend basename to text files -


i'm trying insert basename of text file new line in same file entire directory of files (all different basenames). file "frog.txt" content:

asdf wef sdf

...becomes:

frog asdf wef sdf

you can try bash one-liner:

for file in "sample1.txt" "sample2.txt"; sed -i "1i${file%%.*}" "$file"; done

this loop through each file name. ${file%%.*} remove extension $file. sed -i '1...' insert filename (without extension) first line.


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