How to bring down all internet devices except the specified one?

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1
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I'm looking for a way to bring down all other devices except the given one.

I think it would be along the lines of greping the ifconfig output to then pull all the device names except the specified one and then use those names as input to an ifconfig $DEV down command.

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

add a comment |

up vote
1
down vote

favorite

I'm looking for a way to bring down all other devices except the given one.

I think it would be along the lines of greping the ifconfig output to then pull all the device names except the specified one and then use those names as input to an ifconfig $DEV down command.

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

add a comment |

up vote
1
down vote

favorite

I'm looking for a way to bring down all other devices except the given one.

I think it would be along the lines of greping the ifconfig output to then pull all the device names except the specified one and then use those names as input to an ifconfig $DEV down command.

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

I'm looking for a way to bring down all other devices except the given one.

I think it would be along the lines of greping the ifconfig output to then pull all the device names except the specified one and then use those names as input to an ifconfig $DEV down command.

linux command-line ifconfig

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

edited Nov 20 at 22:29

Rui F Ribeiro

38.2k1475125

asked Nov 27 '17 at 15:31

lukemk1

246

asked Nov 27 '17 at 15:31

lukemk1

246

asked Nov 27 '17 at 15:31

lukemk1

246

add a comment |

1 Answer
1

active

oldest

votes

up vote
2
down vote

accepted

The ifconfig is deprecated, use ip instead.

You can use this simple script:

#!/bin/bash



if [ -z "$1" ]

then

        echo "Device parameter missing!"

        exit 1

fi



devices=`ip a | grep UP | cut -d " " -f2 | tr -d ":" | grep -v "lo" | grep -v "$1"`



for dev in $devices

do      

        ifdown $dev

done

It is called as:

./script.sh <device>

For example with eth0:

./script.sh eth0

If called without parameter, reports Device parameter missing!.

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

1

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

add a comment |

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

up vote
2
down vote

accepted

The ifconfig is deprecated, use ip instead.

You can use this simple script:

#!/bin/bash



if [ -z "$1" ]

then

        echo "Device parameter missing!"

        exit 1

fi



devices=`ip a | grep UP | cut -d " " -f2 | tr -d ":" | grep -v "lo" | grep -v "$1"`



for dev in $devices

do      

        ifdown $dev

done

It is called as:

./script.sh <device>

For example with eth0:

./script.sh eth0

If called without parameter, reports Device parameter missing!.

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

1

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

add a comment |

up vote
2
down vote

accepted

The ifconfig is deprecated, use ip instead.

You can use this simple script:

#!/bin/bash



if [ -z "$1" ]

then

        echo "Device parameter missing!"

        exit 1

fi



devices=`ip a | grep UP | cut -d " " -f2 | tr -d ":" | grep -v "lo" | grep -v "$1"`



for dev in $devices

do      

        ifdown $dev

done

It is called as:

./script.sh <device>

For example with eth0:

./script.sh eth0

If called without parameter, reports Device parameter missing!.

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

1

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

add a comment |

up vote
2
down vote

accepted

The ifconfig is deprecated, use ip instead.

You can use this simple script:

#!/bin/bash



if [ -z "$1" ]

then

        echo "Device parameter missing!"

        exit 1

fi



devices=`ip a | grep UP | cut -d " " -f2 | tr -d ":" | grep -v "lo" | grep -v "$1"`



for dev in $devices

do      

        ifdown $dev

done

It is called as:

./script.sh <device>

For example with eth0:

./script.sh eth0

If called without parameter, reports Device parameter missing!.

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

The ifconfig is deprecated, use ip instead.

You can use this simple script:

#!/bin/bash



if [ -z "$1" ]

then

        echo "Device parameter missing!"

        exit 1

fi



devices=`ip a | grep UP | cut -d " " -f2 | tr -d ":" | grep -v "lo" | grep -v "$1"`



for dev in $devices

do      

        ifdown $dev

done

It is called as:

./script.sh <device>

For example with eth0:

./script.sh eth0

If called without parameter, reports Device parameter missing!.

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

answered Nov 27 '17 at 17:59

Jaroslav Kucera

4,5754621

1

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

add a comment |

1

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

This worked perfectly! Thank you.
– lukemk1
Nov 27 '17 at 22:22

add a comment |

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