Display Spinner while waiting for some process to finish

How can I show spinner till command line finish it is job? In other words, If I am running a script and I want to show spinner while this script is running and the spinner disappears when the script finish it is job.

Bellow is a common spinner code:

i=1

sp="/-|"

echo -n ' '

while true

do

printf "b${sp:i++%${#sp}:1}"

done

How can I link the previous spinner code to a command to let it show spinner while the command is running and the spinner disappears when the command finish it is job? If I include the command inside the loop it will loop with the spinner so what is the solution in this case?

asked Aug 24 '15 at 17:03

user88036

add a comment |

Bellow is a common spinner code:

i=1

sp="/-|"

echo -n ' '

while true

do

printf "b${sp:i++%${#sp}:1}"

done

asked Aug 24 '15 at 17:03

user88036

add a comment |

Bellow is a common spinner code:

i=1

sp="/-|"

echo -n ' '

while true

do

printf "b${sp:i++%${#sp}:1}"

done

asked Aug 24 '15 at 17:03

user88036

Bellow is a common spinner code:

i=1

sp="/-|"

echo -n ' '

while true

do

printf "b${sp:i++%${#sp}:1}"

done

bash

asked Aug 24 '15 at 17:03

user88036

asked Aug 24 '15 at 17:03

user88036

asked Aug 24 '15 at 17:03

user88036

asked Aug 24 '15 at 17:03

user88036

asked Aug 24 '15 at 17:03

user88036

add a comment |

3 Answers
3

active

oldest

votes

Have your while loop watch for your real command to exit. I'll assume a Linux environment that has /proc entries for each PID, but you could slice it other ways:

#!/bin/bash

# your real command here, instead of sleep

sleep 7 &

PID=$!

i=1

sp="/-|"

echo -n ' '

while [ -d /proc/$PID ]

do

  printf "b${sp:i++%${#sp}:1}"

done

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

3

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

add a comment |

This shell script should do what you're looking for:

#!/usr/bin/env bash



show_spinner()

{

  local -r pid="${1}"

  local -r delay='0.75'

  local spinstr='|/-'

  local temp

  while ps a | awk '{print $1}' | grep -q "${pid}"; do

    temp="${spinstr#?}"

    printf " [%c]  " "${spinstr}"

    spinstr=${temp}${spinstr%"${temp}"}

    sleep "${delay}"

    printf "bbbbbb"

  done

  printf "    bbbb"

}



("$@") &

show_spinner "$!"

You can invoke it like this to display a spinner while the command sleep 10 is running:

$ spinner sleep 10

answered Apr 14 '16 at 21:03

jsears

17114

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

add a comment |

Some creativity while waiting.

#!/bin/bash

# b.nelissen



# spinner demo code



# stepsize is the number of characters per animation step

# frames is the frame-art

# stepsize=1; frames='⌜⌝⌟⌞'

# stepsize=1; frames='🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🕛🕧'

# stepsize=1; frames='⛔️  '

stepsize=12; frames='  🎾      | 🎾        |  | 🎾      |  |  🎾     |  |   🎾    |  |    🎾   |  |     🎾  |  |      🎾 /  |        🎾/ |      🎾 |  |     🎾  |  |    🎾   |  |   🎾    |  |  🎾     | '



# the loop

while true; do

    s=$(( (s+$stepsize) %${#frames} )); 

    printf "r${frames:$s:$stepsize}"

    sleep 0.2

done

Animated gif:

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

add a comment |

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

Have your while loop watch for your real command to exit. I'll assume a Linux environment that has /proc entries for each PID, but you could slice it other ways:

#!/bin/bash

# your real command here, instead of sleep

sleep 7 &

PID=$!

i=1

sp="/-|"

echo -n ' '

while [ -d /proc/$PID ]

do

  printf "b${sp:i++%${#sp}:1}"

done

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

3

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

add a comment |

Have your while loop watch for your real command to exit. I'll assume a Linux environment that has /proc entries for each PID, but you could slice it other ways:

#!/bin/bash

# your real command here, instead of sleep

sleep 7 &

PID=$!

i=1

sp="/-|"

echo -n ' '

while [ -d /proc/$PID ]

do

  printf "b${sp:i++%${#sp}:1}"

done

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

3

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

add a comment |

Have your while loop watch for your real command to exit. I'll assume a Linux environment that has /proc entries for each PID, but you could slice it other ways:

#!/bin/bash

# your real command here, instead of sleep

sleep 7 &

PID=$!

i=1

sp="/-|"

echo -n ' '

while [ -d /proc/$PID ]

do

  printf "b${sp:i++%${#sp}:1}"

done

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

Have your while loop watch for your real command to exit. I'll assume a Linux environment that has /proc entries for each PID, but you could slice it other ways:

#!/bin/bash

# your real command here, instead of sleep

sleep 7 &

PID=$!

i=1

sp="/-|"

echo -n ' '

while [ -d /proc/$PID ]

do

  printf "b${sp:i++%${#sp}:1}"

done

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

answered Aug 24 '15 at 17:22

Jeff Schaller

39.7k1054126

3

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

add a comment |

3

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

This is a busy loop that will eat up cpu resources. I'd suggest having a delay of some kind in your while loop.

– ACase
Jul 20 '16 at 14:36

add a comment |

This shell script should do what you're looking for:

#!/usr/bin/env bash



show_spinner()

{

  local -r pid="${1}"

  local -r delay='0.75'

  local spinstr='|/-'

  local temp

  while ps a | awk '{print $1}' | grep -q "${pid}"; do

    temp="${spinstr#?}"

    printf " [%c]  " "${spinstr}"

    spinstr=${temp}${spinstr%"${temp}"}

    sleep "${delay}"

    printf "bbbbbb"

  done

  printf "    bbbb"

}



("$@") &

show_spinner "$!"

You can invoke it like this to display a spinner while the command sleep 10 is running:

$ spinner sleep 10

answered Apr 14 '16 at 21:03

jsears

17114

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

add a comment |

This shell script should do what you're looking for:

#!/usr/bin/env bash



show_spinner()

{

  local -r pid="${1}"

  local -r delay='0.75'

  local spinstr='|/-'

  local temp

  while ps a | awk '{print $1}' | grep -q "${pid}"; do

    temp="${spinstr#?}"

    printf " [%c]  " "${spinstr}"

    spinstr=${temp}${spinstr%"${temp}"}

    sleep "${delay}"

    printf "bbbbbb"

  done

  printf "    bbbb"

}



("$@") &

show_spinner "$!"

You can invoke it like this to display a spinner while the command sleep 10 is running:

$ spinner sleep 10

answered Apr 14 '16 at 21:03

jsears

17114

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

add a comment |

This shell script should do what you're looking for:

#!/usr/bin/env bash



show_spinner()

{

  local -r pid="${1}"

  local -r delay='0.75'

  local spinstr='|/-'

  local temp

  while ps a | awk '{print $1}' | grep -q "${pid}"; do

    temp="${spinstr#?}"

    printf " [%c]  " "${spinstr}"

    spinstr=${temp}${spinstr%"${temp}"}

    sleep "${delay}"

    printf "bbbbbb"

  done

  printf "    bbbb"

}



("$@") &

show_spinner "$!"

You can invoke it like this to display a spinner while the command sleep 10 is running:

$ spinner sleep 10

answered Apr 14 '16 at 21:03

jsears

17114

This shell script should do what you're looking for:

#!/usr/bin/env bash



show_spinner()

{

  local -r pid="${1}"

  local -r delay='0.75'

  local spinstr='|/-'

  local temp

  while ps a | awk '{print $1}' | grep -q "${pid}"; do

    temp="${spinstr#?}"

    printf " [%c]  " "${spinstr}"

    spinstr=${temp}${spinstr%"${temp}"}

    sleep "${delay}"

    printf "bbbbbb"

  done

  printf "    bbbb"

}



("$@") &

show_spinner "$!"

You can invoke it like this to display a spinner while the command sleep 10 is running:

$ spinner sleep 10

answered Apr 14 '16 at 21:03

jsears

17114

answered Apr 14 '16 at 21:03

jsears

17114

answered Apr 14 '16 at 21:03

jsears

17114

answered Apr 14 '16 at 21:03

jsears

17114

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

add a comment |

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

See also stackoverflow.com/a/20369590/2908724

– bishop
Oct 21 '16 at 17:28

add a comment |

Some creativity while waiting.

#!/bin/bash

# b.nelissen



# spinner demo code



# stepsize is the number of characters per animation step

# frames is the frame-art

# stepsize=1; frames='⌜⌝⌟⌞'

# stepsize=1; frames='🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🕛🕧'

# stepsize=1; frames='⛔️  '

stepsize=12; frames='  🎾      | 🎾        |  | 🎾      |  |  🎾     |  |   🎾    |  |    🎾   |  |     🎾  |  |      🎾 /  |        🎾/ |      🎾 |  |     🎾  |  |    🎾   |  |   🎾    |  |  🎾     | '



# the loop

while true; do

    s=$(( (s+$stepsize) %${#frames} )); 

    printf "r${frames:$s:$stepsize}"

    sleep 0.2

done

Animated gif:

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

add a comment |

Some creativity while waiting.

#!/bin/bash

# b.nelissen



# spinner demo code



# stepsize is the number of characters per animation step

# frames is the frame-art

# stepsize=1; frames='⌜⌝⌟⌞'

# stepsize=1; frames='🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🕛🕧'

# stepsize=1; frames='⛔️  '

stepsize=12; frames='  🎾      | 🎾        |  | 🎾      |  |  🎾     |  |   🎾    |  |    🎾   |  |     🎾  |  |      🎾 /  |        🎾/ |      🎾 |  |     🎾  |  |    🎾   |  |   🎾    |  |  🎾     | '



# the loop

while true; do

    s=$(( (s+$stepsize) %${#frames} )); 

    printf "r${frames:$s:$stepsize}"

    sleep 0.2

done

Animated gif:

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

add a comment |

Some creativity while waiting.

#!/bin/bash

# b.nelissen



# spinner demo code



# stepsize is the number of characters per animation step

# frames is the frame-art

# stepsize=1; frames='⌜⌝⌟⌞'

# stepsize=1; frames='🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🕛🕧'

# stepsize=1; frames='⛔️  '

stepsize=12; frames='  🎾      | 🎾        |  | 🎾      |  |  🎾     |  |   🎾    |  |    🎾   |  |     🎾  |  |      🎾 /  |        🎾/ |      🎾 |  |     🎾  |  |    🎾   |  |   🎾    |  |  🎾     | '



# the loop

while true; do

    s=$(( (s+$stepsize) %${#frames} )); 

    printf "r${frames:$s:$stepsize}"

    sleep 0.2

done

Animated gif:

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

Some creativity while waiting.

#!/bin/bash

# b.nelissen



# spinner demo code



# stepsize is the number of characters per animation step

# frames is the frame-art

# stepsize=1; frames='⌜⌝⌟⌞'

# stepsize=1; frames='🕐🕜🕑🕝🕒🕞🕓🕟🕔🕠🕕🕡🕖🕢🕗🕣🕘🕤🕙🕥🕚🕦🕛🕧'

# stepsize=1; frames='⛔️  '

stepsize=12; frames='  🎾      | 🎾        |  | 🎾      |  |  🎾     |  |   🎾    |  |    🎾   |  |     🎾  |  |      🎾 /  |        🎾/ |      🎾 |  |     🎾  |  |    🎾   |  |   🎾    |  |  🎾     | '



# the loop

while true; do

    s=$(( (s+$stepsize) %${#frames} )); 

    printf "r${frames:$s:$stepsize}"

    sleep 0.2

done

Animated gif:

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

edited 6 hours ago

answered 6 hours ago

CousinCocaine

7203710

answered 6 hours ago

CousinCocaine

7203710

answered 6 hours ago

CousinCocaine

7203710

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

add a comment |

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

Good ideas, but since your post is not an answer in itself I think you should either elaborate until it's one, or edit a previous answer and put your code in that.

– PetaspeedBeaver
5 hours ago

add a comment |

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