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How to find program name(s) of an installed package?

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5

1

When I have installed a package using apt, is there a way to find out by which command(s) I can run the installed program(s)?

For instance, the package httpcode is not available as httpcode, and the package description (apt show httpcode) does not explain how to run it. How could I have found out that it’s run via hc from the command line?

There are two slightly hacky workarounds I found:

1. Assuming that programs are by default installed in usr/bin, I ran ls -ltc | head -n 10 to find recenlty touched files there, and indeed I found hc.




2. Similarly to 1, dpkg -L httpcode returns a list of files created by installing the package, which also lists /usr/bin/hc.

Is there a better solution to this problem that doesn’t hinge upon the intuition of where the program might be stored on disk?

I also found that man httpcode does open the man page of the program, even though I called it with the package name as argument. Does this always work (if the program provides a manpage)?

apt package-management dpkg

share|improve this question

asked 13 hours ago

bleistift2bleistift2

366

add a comment | 

5

1

When I have installed a package using apt, is there a way to find out by which command(s) I can run the installed program(s)?

For instance, the package httpcode is not available as httpcode, and the package description (apt show httpcode) does not explain how to run it. How could I have found out that it’s run via hc from the command line?

There are two slightly hacky workarounds I found:

1. Assuming that programs are by default installed in usr/bin, I ran ls -ltc | head -n 10 to find recenlty touched files there, and indeed I found hc.




2. Similarly to 1, dpkg -L httpcode returns a list of files created by installing the package, which also lists /usr/bin/hc.

Is there a better solution to this problem that doesn’t hinge upon the intuition of where the program might be stored on disk?

I also found that man httpcode does open the man page of the program, even though I called it with the package name as argument. Does this always work (if the program provides a manpage)?

apt package-management dpkg

share|improve this question

asked 13 hours ago

bleistift2bleistift2

366

add a comment | 

When I have installed a package using apt, is there a way to find out by which command(s) I can run the installed program(s)?

For instance, the package httpcode is not available as httpcode, and the package description (apt show httpcode) does not explain how to run it. How could I have found out that it’s run via hc from the command line?

There are two slightly hacky workarounds I found:

1. Assuming that programs are by default installed in usr/bin, I ran ls -ltc | head -n 10 to find recenlty touched files there, and indeed I found hc.




2. Similarly to 1, dpkg -L httpcode returns a list of files created by installing the package, which also lists /usr/bin/hc.

Is there a better solution to this problem that doesn’t hinge upon the intuition of where the program might be stored on disk?

I also found that man httpcode does open the man page of the program, even though I called it with the package name as argument. Does this always work (if the program provides a manpage)?

apt package-management dpkg

share|improve this question

asked 13 hours ago

bleistift2bleistift2

366

share|improve this question

asked 13 hours ago

bleistift2bleistift2

366

share|improve this question

asked 13 hours ago

bleistift2bleistift2

366

asked 13 hours ago

bleistift2bleistift2

366

asked 13 hours ago

bleistift2bleistift2

366

1 Answer
1

active

oldest

votes

7

The locations of files (executables, man-pages and other stuff) should conform Filesystem Hierarchy Standard as a rule.

Personally I solve this problem with one of four methods:

1. 
   

   It is known that executables are placed in the directories declared in $PATH environment variable:

   
   
   

   
   

   $ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

   
   

   
   
   

   So one can list all package files with dpkg --list (see man dpkg for details) and find files in /bin, /sbin, /usr/bin, /usr/sbin, /usr/games directories. So we can use the following command:

   
   
   

   
   

   $ dpkg -L httpcode | grep -E "/bin/|/sbin/|/usr/games/"
   
   /usr/bin/hc
   
   

   
   

   
   
   

   So we can see that /usr/bin/hc belongs to this package.

   
   


2. 
   

   List all man-pages:

   
   
   

   
   

   $ dpkg -L httpcode | grep "/man/"
   
   /usr/share/man/man1
   
   /usr/share/man/man1/hc.1.gz
   
   

   
   

   
   
   

   So we can see that we can use man hc.

   
   


3. 
   

   For applications with GUI I run search for *.desktop files.

   
   
   

   
   

   $ dpkg -L httpcode | grep ".desktop"
   
   $
   
   

   
   

   
   
   

   In this particular case it will not return anything.

   
   
   

   With some complicated proprietary (or bad-packaged) stuff this method transforms to reading Exec variable in the *.desktop file - here Telegram is an example:

   
   
   

   
   

    $ dpkg -L telegram | grep ".desktop"
   
   /usr/share/applications/telegram.desktop
   
   
   
   $ grep Exec $(dpkg -L telegram | grep ".desktop")
   
   Exec=/opt/telegram/Telegram -- %u
   
   

   
   

   
   
   

   About Exec see Desktop Entry Specification.

   
   


4. 
   

   For not installed package one can visit https://packages.ubuntu.com and use Search package directories here (for all releases or for selected release), then click on list of files link in the right column of the table:

   
   
   

   
   

   

   
   

   
   
   

   and one will get the file list:

   
   
   

   
   

   

   
   

   
   
   

   This list may interpreted manually or by using searchbar in the browser.

   
   

share|improve this answer

edited 12 hours ago

answered 13 hours ago

N0rbertN0rbert

25k853118

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Is your first solution always feasible, i.e. do package executables always go into some bin directory?
  
  – bleistift2
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yes, good-packaged application should conform Filesystem Hierarchy Standard, so its executables should be placed in /bin, /sbin, /usr/bin, /usr/sbin.
  
  – N0rbert
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Your executable has to be in one of the directories of the PATH, or it will not be found typing just the name of the executable in the terminal.
  
  – vanadium
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vanadium, you are right about $PATH. Edited answer to include this approach.
  
  – N0rbert
  12 hours ago
  

  
  
  
  

add a comment | 

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7

The locations of files (executables, man-pages and other stuff) should conform Filesystem Hierarchy Standard as a rule.

Personally I solve this problem with one of four methods:

1. 
   

   It is known that executables are placed in the directories declared in $PATH environment variable:

   
   
   

   
   

   $ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

   
   

   
   
   

   So one can list all package files with dpkg --list (see man dpkg for details) and find files in /bin, /sbin, /usr/bin, /usr/sbin, /usr/games directories. So we can use the following command:

   
   
   

   
   

   $ dpkg -L httpcode | grep -E "/bin/|/sbin/|/usr/games/"
   
   /usr/bin/hc
   
   

   
   

   
   
   

   So we can see that /usr/bin/hc belongs to this package.

   
   


2. 
   

   List all man-pages:

   
   
   

   
   

   $ dpkg -L httpcode | grep "/man/"
   
   /usr/share/man/man1
   
   /usr/share/man/man1/hc.1.gz
   
   

   
   

   
   
   

   So we can see that we can use man hc.

   
   


3. 
   

   For applications with GUI I run search for *.desktop files.

   
   
   

   
   

   $ dpkg -L httpcode | grep ".desktop"
   
   $
   
   

   
   

   
   
   

   In this particular case it will not return anything.

   
   
   

   With some complicated proprietary (or bad-packaged) stuff this method transforms to reading Exec variable in the *.desktop file - here Telegram is an example:

   
   
   

   
   

    $ dpkg -L telegram | grep ".desktop"
   
   /usr/share/applications/telegram.desktop
   
   
   
   $ grep Exec $(dpkg -L telegram | grep ".desktop")
   
   Exec=/opt/telegram/Telegram -- %u
   
   

   
   

   
   
   

   About Exec see Desktop Entry Specification.

   
   


4. 
   

   For not installed package one can visit https://packages.ubuntu.com and use Search package directories here (for all releases or for selected release), then click on list of files link in the right column of the table:

   
   
   

   
   

   

   
   

   
   
   

   and one will get the file list:

   
   
   

   
   

   

   
   

   
   
   

   This list may interpreted manually or by using searchbar in the browser.

   
   

share|improve this answer

edited 12 hours ago

answered 13 hours ago

N0rbertN0rbert

25k853118

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Is your first solution always feasible, i.e. do package executables always go into some bin directory?
  
  – bleistift2
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yes, good-packaged application should conform Filesystem Hierarchy Standard, so its executables should be placed in /bin, /sbin, /usr/bin, /usr/sbin.
  
  – N0rbert
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Your executable has to be in one of the directories of the PATH, or it will not be found typing just the name of the executable in the terminal.
  
  – vanadium
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vanadium, you are right about $PATH. Edited answer to include this approach.
  
  – N0rbert
  12 hours ago
  

  
  
  
  

add a comment | 

7

The locations of files (executables, man-pages and other stuff) should conform Filesystem Hierarchy Standard as a rule.

Personally I solve this problem with one of four methods:

1. 
   

   It is known that executables are placed in the directories declared in $PATH environment variable:

   
   
   

   
   

   $ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

   
   

   
   
   

   So one can list all package files with dpkg --list (see man dpkg for details) and find files in /bin, /sbin, /usr/bin, /usr/sbin, /usr/games directories. So we can use the following command:

   
   
   

   
   

   $ dpkg -L httpcode | grep -E "/bin/|/sbin/|/usr/games/"
   
   /usr/bin/hc
   
   

   
   

   
   
   

   So we can see that /usr/bin/hc belongs to this package.

   
   


2. 
   

   List all man-pages:

   
   
   

   
   

   $ dpkg -L httpcode | grep "/man/"
   
   /usr/share/man/man1
   
   /usr/share/man/man1/hc.1.gz
   
   

   
   

   
   
   

   So we can see that we can use man hc.

   
   


3. 
   

   For applications with GUI I run search for *.desktop files.

   
   
   

   
   

   $ dpkg -L httpcode | grep ".desktop"
   
   $
   
   

   
   

   
   
   

   In this particular case it will not return anything.

   
   
   

   With some complicated proprietary (or bad-packaged) stuff this method transforms to reading Exec variable in the *.desktop file - here Telegram is an example:

   
   
   

   
   

    $ dpkg -L telegram | grep ".desktop"
   
   /usr/share/applications/telegram.desktop
   
   
   
   $ grep Exec $(dpkg -L telegram | grep ".desktop")
   
   Exec=/opt/telegram/Telegram -- %u
   
   

   
   

   
   
   

   About Exec see Desktop Entry Specification.

   
   


4. 
   

   For not installed package one can visit https://packages.ubuntu.com and use Search package directories here (for all releases or for selected release), then click on list of files link in the right column of the table:

   
   
   

   
   

   

   
   

   
   
   

   and one will get the file list:

   
   
   

   
   

   

   
   

   
   
   

   This list may interpreted manually or by using searchbar in the browser.

   
   

share|improve this answer

edited 12 hours ago

answered 13 hours ago

N0rbertN0rbert

25k853118

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Is your first solution always feasible, i.e. do package executables always go into some bin directory?
  
  – bleistift2
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Yes, good-packaged application should conform Filesystem Hierarchy Standard, so its executables should be placed in /bin, /sbin, /usr/bin, /usr/sbin.
  
  – N0rbert
  13 hours ago
  

  
  
  
  


• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Your executable has to be in one of the directories of the PATH, or it will not be found typing just the name of the executable in the terminal.
  
  – vanadium
  12 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @vanadium, you are right about $PATH. Edited answer to include this approach.
  
  – N0rbert
  12 hours ago
  

  
  
  
  

add a comment | 

The locations of files (executables, man-pages and other stuff) should conform Filesystem Hierarchy Standard as a rule.

Personally I solve this problem with one of four methods:

1. 
   

   It is known that executables are placed in the directories declared in $PATH environment variable:

   
   
   

   
   

   $ echo $PATH
/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

   
   

   
   
   

   So one can list all package files with dpkg --list (see man dpkg for details) and find files in /bin, /sbin, /usr/bin, /usr/sbin, /usr/games directories. So we can use the following command:

   
   
   

   
   

   $ dpkg -L httpcode | grep -E "/bin/|/sbin/|/usr/games/"
   
   /usr/bin/hc
   
   

   
   

   
   
   

   So we can see that /usr/bin/hc belongs to this package.

   
   


2. 
   

   List all man-pages:

   
   
   

   
   

   $ dpkg -L httpcode | grep "/man/"
   
   /usr/share/man/man1
   
   /usr/share/man/man1/hc.1.gz
   
   

   
   

   
   
   

   So we can see that we can use man hc.

   
   


3. 
   

   For applications with GUI I run search for *.desktop files.

   
   
   

   
   

   $ dpkg -L httpcode | grep ".desktop"
   
   $
   
   

   
   

   
   
   

   In this particular case it will not return anything.

   
   
   

   With some complicated proprietary (or bad-packaged) stuff this method transforms to reading Exec variable in the *.desktop file - here Telegram is an example:

   
   
   

   
   

    $ dpkg -L telegram | grep ".desktop"
   
   /usr/share/applications/telegram.desktop
   
   
   
   $ grep Exec $(dpkg -L telegram | grep ".desktop")
   
   Exec=/opt/telegram/Telegram -- %u
   
   

   
   

   
   
   

   About Exec see Desktop Entry Specification.

   
   


4. 
   

   For not installed package one can visit https://packages.ubuntu.com and use Search package directories here (for all releases or for selected release), then click on list of files link in the right column of the table:

   
   
   

   
   

   

   
   

   
   
   

   and one will get the file list:

   
   
   

   
   

   

   
   

   
   
   

   This list may interpreted manually or by using searchbar in the browser.

   
   

share|improve this answer

edited 12 hours ago

answered 13 hours ago

N0rbertN0rbert

25k853118

share|improve this answer

edited 12 hours ago

answered 13 hours ago

N0rbertN0rbert

25k853118

answered 13 hours ago

N0rbertN0rbert

25k853118

answered 13 hours ago

N0rbertN0rbert

25k853118