# cli commands
#cli

## display list of content types and # of associated nodes:
drush sqlq 'select count(node.nid) as node_count, node_type.type from node inner join node_type on node.type = node_type.type group by node_type.type'

## And then if you want filter by a specific type, just use grep like this:
drush sqlq 'select count(node.nid) as node_count, node_type.type from node inner join node_type on node.type = node_type.type group by node_type.type' | grep 2014

## search replace in text mulitle files
perl -pi -w -e 's/SEARCH_FOR/REPLACE_WITH/g;' *.txt
perl -pi -w -e 's/thex/robertsonlibrary/g;' **/*.*

## search replace in file names
rename 's/livero/lives/g' **/*.* -v

## torrent download
aria2c -d ~/Downloads "magnetlink" 


ocrmypdf --optimize 3 --skip-text input.pdf output.pdf


ocrmypdf --optimize 3 --image-dpi 300 --output-type pdf \
         --force-ocr --tesseract-pagesegmode 1 input.pdf output.pdf

# down sample pdfs to 72dpi
(single file)
gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 \
   -dPDFSETTINGS=/screen \
   -dNOPAUSE -dQUIET -dBATCH \
   -sOutputFile=output.pdf input.pdf

(batch)

# In the folder with your PDFs
mkdir downsampled

for f in *.pdf *.PDF; do
    [ -f "$f" ] || continue
    gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen \
       -dNOPAUSE -dBATCH \
       -sOutputFile="downsampled/${f%.pdf}_72dpi.pdf" \
       "$f"
done
# In the folder that contains your original PDFs

mkdir -p downsampled

for f in *.pdf *.PDF; do
    [ -f "$f" ] || continue
    gs -sDEVICE=pdfwrite -dCompatibilityLevel=1.4 -dPDFSETTINGS=/screen \
       -dNOPAUSE -dBATCH -dQUIET \
       -sOutputFile="downsampled/$f" \
       "$f"
done

# check current dpi
for f in *.pdf *.PDF; do
    echo "=== Images in: $f ==="
    pdfimages -list "$f"
    echo ""
done
# Creates (or overwrites) images_list.txt in the current directory
for f in *.pdf *.PDF; do
    if [ -f "$f" ]; then
        echo "=== Images in: $f ===" >> images_list.txt
        pdfimages -list "$f"       >> images_list.txt
        echo ""                    >> images_list.txt
    fi
done
# scan for ccitt encoding
for f in *.pdf *.PDF; do
    [ -f "$f" ] || continue
    if pdfimages -list "$f" 2>/dev/null | grep -q " ccitt "; then
        echo "$f uses CCITT"
    fi
done