alhelal's questions

I select some text and copy it using Ctrl + c. Now the text is in the system clipboard. I can paste this code using Ctrl + v in a file and run wc for the file to check the count of characters, lines and words.

But if I want to count the characters of the text in the clipboard without saving this in a file, is there a solution?

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

    deleted:    Assignment_3/Apriori/bodon_trie.pdf
    deleted:    Assignment_3/Apriori/farhanSir.pdf
    deleted:    Assignment_3/Apriori/output.txt~
    deleted:    Assignment_4/Comparision/report.aux
    deleted:    Assignment_4/Comparision/report.log
    deleted:    Assignment_4/FPGrowth/FPGrowth.class
    deleted:    Assignment_4/FPGrowth/FPGrowthApplication.class
    deleted:    Assignment_4/FPGrowth/Node.class
    deleted:    Assignment_4/FPGrowth/Result.class

This is the output of git status. I want to delete this from git cache using git rm --cache Assignment_3/Apriori/boden_trie.pdf ?/farhanSir.pdf I don't want to type Assignment_3/Apriori for each file.

In Ubuntu 18.04 searching by 'suspend' shows a icon that results suspend the pc.

May be this feature is for gnome-extension.

Can I get this feature in 14.04?

Is it possible to view this output sorted with titlepage_1.pdf before titlepage_19.pdf?

$ ls
allTitlepage.pdf         titlepage_12.pdf  titlepage_19.tex  titlepage_26.pdf  titlepage_32.tex  titlepage_4.tex
allTitlepage.tex         titlepage_12.tex  titlepage_1.pdf   titlepage_26.tex  titlepage_33.pdf  titlepage_5.pdf
assignment.pdf           titlepage_13.pdf  titlepage_1.tex   titlepage_27.pdf  titlepage_34.pdf  titlepage_5.tex
assignment.tex           titlepage_13.tex  titlepage_20.pdf  titlepage_27.tex  titlepage_34.tex  titlepage_6.pdf
graphicsAssignment2.pdf  titlepage_14.pdf  titlepage_20.tex  titlepage_28.pdf  titlepage_35.pdf  titlepage_6.tex
graphicsAssignment2.tex  titlepage_14.tex  titlepage_21.pdf  titlepage_28.tex  titlepage_35.tex  titlepage_7.pdf
README.md                titlepage_15.pdf  titlepage_21.tex  titlepage_29.pdf  titlepage_36.pdf  titlepage_7.tex
thesisTitlepage.pdf      titlepage_15.tex  titlepage_22.pdf  titlepage_29.tex  titlepage_36.tex  titlepage_8.pdf
thesisTitlepage.tex      titlepage_16.pdf  titlepage_22.tex  titlepage_2.pdf   titlepage_37.pdf  titlepage_8.tex
titlepage_0.pdf          titlepage_16.tex  titlepage_23.pdf  titlepage_2.tex   titlepage_37.tex  titlepage_9.pdf
titlepage_0.tex          titlepage_17.pdf  titlepage_23.tex  titlepage_30.pdf  titlepage_38.pdf  titlepage_9.tex
titlepage_10.pdf         titlepage_17.tex  titlepage_24.pdf  titlepage_30.tex  titlepage_38.tex  titlepage_one.pdf
titlepage_10.tex         titlepage_18.pdf  titlepage_24.tex  titlepage_31.pdf  titlepage_3.pdf   titlepage_one.tex
titlepage_11.pdf         titlepage_18.tex  titlepage_25.pdf  titlepage_31.tex  titlepage_3.tex   titlepage_two.tex
titlepage_11.tex         titlepage_19.pdf  titlepage_25.tex  titlepage_32.pdf  titlepage_4.pdf

I can launch dropbox from dash that open the web interface and shows that it connects with my computer. But, in my home directory there is no dropbox folder.

I have 4GB RAM. When I open Firefox, IntelliJ IDEA or VS Code and some other application my memory is about used up thus my machine hangs and I can't do anything. I can't even close any applications.

Date and time are shown in the top bar so that I can view it any time without any thing typing.

If I would view memory status in this way without typing anything then I can make a decision whether to open an application or whether this application may put my machine in hanging state or not.

Is it possible in Ubuntu 18.04 LTS?

The requirement is very simple. Just draw a red bordered circle in a specific position.

I want to see a "show desktop" icon when I press Alt+Tab (i.e. in the Application-switcher).

My question is the opposite of How can I remove "Show Desktop" from the Alt-Tab (application) switcher?

I am using Ubuntu 18.04.

I have installed GNOME Tweak Tool which I think may help, but I don't know how to achieve what I want.

gsettings set org.gnome.desktop.interface clock-show-date true

I want to copy this command into the clipboard so that I can paste it in a file or an Ask Ubuntu question easily.

I know I can copy this by selecting it and pressing Ctrl+Shift+C, but I want to get a mouse free answer.

I want to show date in top bar using gnome-tweak-tool. I get the GUI solution How to show date in top bar of deskop in ubuntu 18.04 LTS?

I want to get the CLI solution so that I can add this in my post OS installation script.

This question may be helpful to answer this question. How can I script the settings made by gnome-tweak-tool?

In the top bar of the window day and time are shown, but not date. Is it possible to show the date also by changing the setting?

The Wireshark version in Ubuntu 14.04 LTS is 1.12.1, but the latest Wireshark version is 2.6.0. The default php version is 5 but the latest php version is 7.

The sudo apt-get install command easily installs software, but sometimes it provides old versions.

So, if I can know the default version provided by a particular software package in a newer Ubuntu release, I can make a decision whether to upgrade my Ubuntu version or not.

Is there any Ubuntu release note/doc/chart that lists default software version for all Ubuntu software?

$ firefox -v
Mozilla Firefox 60.0.1

I add the firefox addon but can't connect with that.

Inside the terminal when I type resize -s 50 50 terminal output is changed as rows 50 and columns 50.

But after closing the window and reopen terminal doesn't reflect the changes.

I want to open the terminal all time as rows 50 and columns 50.

I know this can be done using terminal Edit->Profile Preference->General setting with changing the rows and columns number, but I want to do this in CLI, because I have to do this inside a big script.

My .bashrc

# ~/.bashrc: executed by bash(1) for non-login shells.
# see /usr/share/doc/bash/examples/startup-files (in the package bash-doc)
# for examples

# If not running interactively, don't do anything
case $- in
    *i*) ;;
      *) return;;
esac

# don't put duplicate lines or lines starting with space in the history.
# See bash(1) for more options
HISTCONTROL=ignoreboth

# append to the history file, don't overwrite it
shopt -s histappend

# for setting history length see HISTSIZE and HISTFILESIZE in bash(1)
HISTSIZE=1000
HISTFILESIZE=2000

# check the window size after each command and, if necessary,
# update the values of LINES and COLUMNS.
shopt -s checkwinsize

# If set, the pattern "**" used in a pathname expansion context will
# match all files and zero or more directories and subdirectories.
#shopt -s globstar

# make less more friendly for non-text input files, see lesspipe(1)
[ -x /usr/bin/lesspipe ] && eval "$(SHELL=/bin/sh lesspipe)"

# set variable identifying the chroot you work in (used in the prompt below)
if [ -z "${debian_chroot:-}" ] && [ -r /etc/debian_chroot ]; then
    debian_chroot=$(cat /etc/debian_chroot)
fi

# set a fancy prompt (non-color, unless we know we "want" color)
case "$TERM" in
    xterm-color) color_prompt=yes;;
esac

# uncomment for a colored prompt, if the terminal has the capability; turned
# off by default to not distract the user: the focus in a terminal window
# should be on the output of commands, not on the prompt
#force_color_prompt=yes

if [ -n "$force_color_prompt" ]; then
    if [ -x /usr/bin/tput ] && tput setaf 1 >&/dev/null; then
    # We have color support; assume it's compliant with Ecma-48
    # (ISO/IEC-6429). (Lack of such support is extremely rare, and such
    # a case would tend to support setf rather than setaf.)
    color_prompt=yes
    else
    color_prompt=
    fi
fi

if [ "$color_prompt" = yes ]; then
    PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
else
    PS1='${debian_chroot:+($debian_chroot)}\u@\h:\w\$ '
fi
unset color_prompt force_color_prompt

# If this is an xterm set the title to user@host:dir
case "$TERM" in
xterm*|rxvt*)
    PS1="\[\e]0;${debian_chroot:+($debian_chroot)}\u@\h: \w\a\]$PS1"
    ;;
*)
    ;;
esac

# enable color support of ls and also add handy aliases
if [ -x /usr/bin/dircolors ]; then
    test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
    alias ls='ls --color=auto'
    #alias dir='dir --color=auto'
    #alias vdir='vdir --color=auto'

    alias grep='grep --color=auto'
    alias fgrep='fgrep --color=auto'
    alias egrep='egrep --color=auto'
fi

# some more ls aliases
alias ll='ls -alF'
alias la='ls -A'
alias l='ls -CF'

# Add an "alert" alias for long running commands.  Use like so:
#   sleep 10; alert
alias alert='notify-send --urgency=low -i "$([ $? = 0 ] && echo terminal || echo error)" "$(history|tail -n1|sed -e '\''s/^\s*[0-9]\+\s*//;s/[;&|]\s*alert$//'\'')"'

# Alias definitions.
# You may want to put all your additions into a separate file like
# ~/.bash_aliases, instead of adding them here directly.
# See /usr/share/doc/bash-doc/examples in the bash-doc package.

if [ -f ~/.bash_aliases ]; then
    . ~/.bash_aliases
fi

# enable programmable completion features (you don't need to enable
# this, if it's already enabled in /etc/bash.bashrc and /etc/profile
# sources /etc/bash.bashrc).
if ! shopt -oq posix; then
  if [ -f /usr/share/bash-completion/bash_completion ]; then
    . /usr/share/bash-completion/bash_completion
  elif [ -f /etc/bash_completion ]; then
    . /etc/bash_completion
  fi
fi
##########################################################################################################
#alhelal customization
resize -s 50 50
#resize -s 50 50 >/dev/null
##########################################################################################################

Result after pressing CtrlAltT

The default terminal size of Ubuntu is smaller than my monitor. When I install new OS I have to change many setting(customization), installation many software. So, I am making a script that do the customization and install all stuffs without my interruption. e.g.,

• change terminal window size
• make shortkey
• install firefox addons
• install software
• clone git repository.

I can use wget -r 'url'. But I don't know the size that will be downloaded. I use wget --spider 'url' to know a webpage size and when I use wget -r --spider 'url' it checks all page recursively and return each file size that I don't want, I want only the entire(cumulative of each) size.

I want to know the size of file with .o extension (object file) in my Home folder.

I can find all the object files using

find . -name '*.o'

How can I now calculate total size of those files?

I have set world map as my desktop wallpaper,so that I can learn about the geological location of any country easily.Because when I come to my desktop or restart my laptop I have to watch the map at least one time.But for a big world map my desktop size is not enough.

So,if there have any way that I scroll,zoom the wallpaper of the map then it is easy for me to search a country location.

I am using Ubuntu 14.04 LTS.

Is there any shortcut for it?

If not is it possible to set a key for this operation?

I am using Ubuntu 14.04 LTS.

I'm using this command: gnome-open file_name.xxx(xxx file extension) command but it's not working. I'm using Ubuntu 14.04.

I use Ubuntu 14.04 LTS. I tried rm 'ls', rm rf but they did not work.