Lets put all best of the command line tools in here.

1

I am not giving you all the discription but you can see by the link and let me know if you have better option Under yoru knowledge. :idea:

  1. mps-youtube
    Terminal based YouTube jukebox with playlist management
    Features and rest ------> mps

  2. beets: the music geek’s media organizer
    Features and rest —> beets

3)Google Translate to serve as a command line tool
google translate

4)Midnight Commander -File manager
Midnight Commander

  1. Recovery & backup
    All explained here as brain doent work at last movement thanks to Netrunner Team Recovery & Backup

6)Chit chat (messenger)
Bitlbee
CenterIM

7)Email client
Mutt

8)dtrx: Intelligent archive extraction (Do The Right Extraction)
dtrx

9)ffmpeg - Record, convert, stream and play multimedia content
ffmpeg

  1. ELinks – Web Browser
    ELinks

11)RSS
newsbeuter
Canto

12)Task warrior, the cli organizer
taskwarrior

13)gcalcli (Google Calendar Command Line Interface)
gcalcli(git)

pcal(PostScript Calendar Programs)
Pcal
spreadsheet commander installing by command apt-get install sc
GUI alternative to Excel gnumeric

calcurse is a text-based calendar and scheduling application
Calcurse

14)multitail - Tail command on steroids
MultiTail allows you to monitor logfiles and command output in multiple windows in a terminal, colorize, filter and merge.
Multi Tail

15)PuTTY
puTTY

16)netcat - TCP/IP swiss army knife
netcat

  1. Command line downloader
    Wget is default
    curl------>curl
    aria2---->aria2
    Sharing from command line
    Cloudup

18)Tmux is a terminal multiplexer.
http://tmux.sourceforge.net/

  1. TPP (Text Power Point)
    TPP-----> TPP
    git-------->TPP git

  2. Command line pass manager
    Pass

  3. Python Twitter
    Python Twitter

  4. Document converter
    Pandoc

  5. Real-time web log analyzer
    Terminal base