CommandLineMagick

Fede oneliners og scripts

Manipulate results from ls

I de første to commands herunder er -I the name of the game. Den får xargs til at newline som seperator mellem inputs i stedet for whitespace. Hvilket er noget rod, når der er mellemrum i filnavnet.

Copy files returnet from ls

ls | egrep 'Skærm.+\.png'| xargs -I '{}' cp '{}' ~/Documents/workspace/2021/image_mosaic/pic/screenshots`

Remove files from ls

ls | egrep 'Skærm.+\.png'| xargs -I '{}' rm '{}'

Merge foldername into filename

for FOLDER in *; do for FILE in $FOLDER/*; do mv "$FILE" "$FOLDER/${FOLDER}_$(basename $FILE)" ; done ; done

Bash script solution can be found here

Batch process files in OCRmyPDF:

parallel --tag -j 2 ocrmypdf -l dan+eng '{}' '{}' ::: *.pdf

Combinging several pdfs into one using qpdf

qpdf --empty --pages *.pdf -- out.pdf`

Create PDF as A4 paper from jpg and jpeg files

img2pdf --pagesize A4 *.jp* --output test.pdf

Create a huge poster spreading poster on four A3

Make sure that input file is the actual size of four times A3

magick christmas_help.jpg -extent 7016x9922 -crop 2x2@ +repage mytiles.jpg

Ghostscript command to compress pdf-files

gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/printer -dNOPAUSE -dQUIET -dBATCH -sOutputFile=output.pdf input.pdf