zcat /var/log/apt/history.log.*.gz | cat - /var/log/apt/history.log | grep -Po '^Commandline: apt-get install (?!.*--reinstall)K.*'

grep " install " /var/log/dpkg.log

sudo apt-get install [package]

history | grep "apt-get install"

grep "apt-get install" .bash_history

ravan@ravan:~$ grep "apt-get install" .bash_history

sudo apt-get install --no-install-recommends ubuntu-mate-core ubuntu-mate-desktop
sudo apt-get install xfce4
sudo apt-get install xfce4.12
sudo apt-get install pgadmin
sudo apt-get install touchegg
sudo apt-get install aptitude
sudo apt-get install aptitude
sudo gedit .bash_history | grep "apt-get install"
sudo apt-get installvim
grep "apt-get install" .bash_history
cat .bash_history | grep "apt-get install"

history | grep apt-get

zcat /var/log/apt/history.log.*.gz | cat - /var/log/apt/history.log | grep -Po '^Commandline: apt-get install (?!.*--reinstall)K.*'

zcat -qf /var/log/apt/history.log* | grep -Po '^Commandline: apt-get install (?!.*--reinstall)K.*'

-q --quiet
          Suppress all warnings.
   -f --force
          Force  compression  or  decompression  even if the file has multiple links or the corre‐
          sponding file already exists, or if the compressed data is read from  or  written  to  a
          terminal.  If  the  input  data is not in a format recognized by gzip, and if the option
          --stdout is also given, copy the input data without change to the standard  output:  let
          zcat  behave  as  cat.  If -f is not given, and when not running in the background, gzip
          prompts to verify whether an existing file should be overwritten.

alias apted='zcat /var/log/apt/history.log.*.gz | cat - /var/log/apt/history.log | fgrep Commandline: | cut -d " " -f 2- | grep -P "^|install"'

#!/bin/sh
NumDaysAgo=18
find /var/lib/dpkg/info -name "*.list" -mtime -$NumDaysAgo
    -exec stat -c $'%yt%n' {} ; |
sed -e 's,/var/lib/dpkg/info/,,' -e 's,.list,,' |
sort -r |
while read Date Time Xxx Pkg
do
    lncnt=$(apt-cache --installed rdepends $Pkg | wc -l)
    if [ $lncnt -eq "2" ]
        then echo "$Date $Time $Pkg"
    fi
done
echo "JOB COMPLETED: $BASH_SOURCE"