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Exact system actions when we use this commands
Announcing the arrival of Valued Associate #679: Cesar Manara
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I use Ubuntu Studio 18.04.2 LTS (64 bit Linux).
I want to know what exactly the system does when we use the following commands:
sudo dpkg -l | grep -i ^rc
sudo dpkg -l | grep -i ^rc | cut -d " " -f 3 | xargs dpkg --purge
command-line
add a comment |
I use Ubuntu Studio 18.04.2 LTS (64 bit Linux).
I want to know what exactly the system does when we use the following commands:
sudo dpkg -l | grep -i ^rc
sudo dpkg -l | grep -i ^rc | cut -d " " -f 3 | xargs dpkg --purge
command-line
dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago
add a comment |
I use Ubuntu Studio 18.04.2 LTS (64 bit Linux).
I want to know what exactly the system does when we use the following commands:
sudo dpkg -l | grep -i ^rc
sudo dpkg -l | grep -i ^rc | cut -d " " -f 3 | xargs dpkg --purge
command-line
I use Ubuntu Studio 18.04.2 LTS (64 bit Linux).
I want to know what exactly the system does when we use the following commands:
sudo dpkg -l | grep -i ^rc
sudo dpkg -l | grep -i ^rc | cut -d " " -f 3 | xargs dpkg --purge
command-line
command-line
edited 6 hours ago
dessert
25.7k674108
25.7k674108
asked 6 hours ago
JuanJuan
5604827
5604827
dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago
add a comment |
dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago
dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago
dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago
add a comment |
1 Answer
1
active
oldest
votes
sudo dpkg -l
list packages
| grep -i ^rc
that start (^
) with rc
| cut -d " " -f 3
"cut" at the space, select only the 3rd field (-f 3
).
| xargs dpkg --purge
and purge it. Example without purging:
$ sudo dpkg -l | grep -i ^rc
rc linux-image-5.0.0-7-generic 5.0.0-7.8 amd64 Signed kernel image generic
rc linux-modules-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
rc linux-modules-extra-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
$ sudo dpkg -l | grep -i ^rc | cut -d " " -f 3
linux-image-5.0.0-7-generic
linux-modules-5.0.0-7-generic
linux-modules-extra-5.0.0-7-generic
Issudo
needed? Doesgrep
’s-i
change anything? But that’s the second column… What does removing everyrc
package do to the system, is it harmful/a good idea/unnecessary/…?
– dessert
4 hours ago
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
sudo dpkg -l
list packages
| grep -i ^rc
that start (^
) with rc
| cut -d " " -f 3
"cut" at the space, select only the 3rd field (-f 3
).
| xargs dpkg --purge
and purge it. Example without purging:
$ sudo dpkg -l | grep -i ^rc
rc linux-image-5.0.0-7-generic 5.0.0-7.8 amd64 Signed kernel image generic
rc linux-modules-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
rc linux-modules-extra-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
$ sudo dpkg -l | grep -i ^rc | cut -d " " -f 3
linux-image-5.0.0-7-generic
linux-modules-5.0.0-7-generic
linux-modules-extra-5.0.0-7-generic
Issudo
needed? Doesgrep
’s-i
change anything? But that’s the second column… What does removing everyrc
package do to the system, is it harmful/a good idea/unnecessary/…?
– dessert
4 hours ago
add a comment |
sudo dpkg -l
list packages
| grep -i ^rc
that start (^
) with rc
| cut -d " " -f 3
"cut" at the space, select only the 3rd field (-f 3
).
| xargs dpkg --purge
and purge it. Example without purging:
$ sudo dpkg -l | grep -i ^rc
rc linux-image-5.0.0-7-generic 5.0.0-7.8 amd64 Signed kernel image generic
rc linux-modules-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
rc linux-modules-extra-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
$ sudo dpkg -l | grep -i ^rc | cut -d " " -f 3
linux-image-5.0.0-7-generic
linux-modules-5.0.0-7-generic
linux-modules-extra-5.0.0-7-generic
Issudo
needed? Doesgrep
’s-i
change anything? But that’s the second column… What does removing everyrc
package do to the system, is it harmful/a good idea/unnecessary/…?
– dessert
4 hours ago
add a comment |
sudo dpkg -l
list packages
| grep -i ^rc
that start (^
) with rc
| cut -d " " -f 3
"cut" at the space, select only the 3rd field (-f 3
).
| xargs dpkg --purge
and purge it. Example without purging:
$ sudo dpkg -l | grep -i ^rc
rc linux-image-5.0.0-7-generic 5.0.0-7.8 amd64 Signed kernel image generic
rc linux-modules-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
rc linux-modules-extra-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
$ sudo dpkg -l | grep -i ^rc | cut -d " " -f 3
linux-image-5.0.0-7-generic
linux-modules-5.0.0-7-generic
linux-modules-extra-5.0.0-7-generic
sudo dpkg -l
list packages
| grep -i ^rc
that start (^
) with rc
| cut -d " " -f 3
"cut" at the space, select only the 3rd field (-f 3
).
| xargs dpkg --purge
and purge it. Example without purging:
$ sudo dpkg -l | grep -i ^rc
rc linux-image-5.0.0-7-generic 5.0.0-7.8 amd64 Signed kernel image generic
rc linux-modules-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
rc linux-modules-extra-5.0.0-7-generic 5.0.0-7.8 amd64 Linux kernel extra modules for version 5.0.0 on 64 bit x86 SMP
$ sudo dpkg -l | grep -i ^rc | cut -d " " -f 3
linux-image-5.0.0-7-generic
linux-modules-5.0.0-7-generic
linux-modules-extra-5.0.0-7-generic
answered 5 hours ago
RinzwindRinzwind
211k28406541
211k28406541
Issudo
needed? Doesgrep
’s-i
change anything? But that’s the second column… What does removing everyrc
package do to the system, is it harmful/a good idea/unnecessary/…?
– dessert
4 hours ago
add a comment |
Issudo
needed? Doesgrep
’s-i
change anything? But that’s the second column… What does removing everyrc
package do to the system, is it harmful/a good idea/unnecessary/…?
– dessert
4 hours ago
Is
sudo
needed? Does grep
’s -i
change anything? But that’s the second column… What does removing every rc
package do to the system, is it harmful/a good idea/unnecessary/…?– dessert
4 hours ago
Is
sudo
needed? Does grep
’s -i
change anything? But that’s the second column… What does removing every rc
package do to the system, is it harmful/a good idea/unnecessary/…?– dessert
4 hours ago
add a comment |
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dpkg queries list of installed packages, other commands just filter the output
– Sergiy Kolodyazhnyy
6 hours ago