refresh-scratch.sh

#!/usr/bin/env bash                                                                                                                                                                                                                                               

#                                                                                                                                                                                                                                                                 
# This script refreshes the access time of files and folders                                                                                                                                                                                                      
#                                                                                                                                                                                                                                                                 

# update this list with the files and folders you wish to preserve.                                                                                                                                                                                               
# folders will be traversed recursively.                                                                                                                                                                                                                          
files=(
    /scratch/jslegare/refresh.sh
    /scratch/jslegare/{bams_Melis,melis-call,Melis}
    /scratch/jslegare/data
    /scratch/jslegare/{gowens-call,issue_43}
    /scratch/jslegare/sra_test
    /scratch/jslegare/subset_variants_522
    /scratch/jslegare/sunrise
)

case "$1" in
    y)
        :
        ;;
    *)
        echo "pass y as an argument to refresh files" >&2
        exit 0
        ;;
esac

set -exo pipefail

shbin=$(which bash)

errorlog=refresh_errors.$$.txt

for d in "${files[@]}"; do
    [[ -e "$d" ]]
    echo "DIR $d"
    # -a: access time only                                                                                                                                                                                                                                        
    # -c: no-create                                                                                                                                                                                                                                               
    find "$d" -print -exec "$shbin" -c 'touch -a -c "$0" || echo ERROR "$0" >&2' '{}' ';' 2>"$errorlog"

    if [[ -s "$errorlog" ]]; then
        echo "errors occurred." >&2
        exit 1
    fi
done

rm "$errorlog"
echo "all done"