bash: snaps-list-updates-recent.sh

snaps-list-updates-recent.sh

#!/usr/bin/env bash
# snaps-list-updates-recent.sh

# checks all installed snaps by name,
# lists them by latest update date.
tempfile=/tmp/snaps-$(date +%Y+%m-%d).txt
rm -f $tempfile
# can take a few seconds to run.
# therefore write to temp file.
snap_names=$(snap list \
  | cut -d" " -f 1 \
  | grep -v Name)
echo Name Version Refresh_Date > $tempfile
for name in $snap_names; do
  snap_version_tracked=$(snap info $name | grep tracking: | perl -pE 's/tracking:\s*//g') 
  snap_refresh_date=$(snap info $name --abs-time | grep refresh-date: ) 
  # format ISO-date to YYYY-MM-DD
  snap_refresh_date=$(echo $snap_refresh_date | perl -pE 's/refresh-date:\s*//g' | perl -pE 's/T.+$//') 
  echo $name $snap_version_tracked $snap_refresh_date >> $tempfile
done
# sort by date ascending and display.
csvsort  $tempfile -c3,1 | csvlook
#rm -f $tempfile #optional