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Using linux command line, what is the easiest way to delete matching files in all subdirectories of other extensions?

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0

I've been browsing around and trying to find the answer - bonus points for doing this in the shortest number of characters.

So I have file1.ex1 file2.ex1 file1.ex2 but no file2.ex2

I want to delete all the ex1 files, but only if ex2 version exists first.

So I assume this means I need to get a directory listing of all files ending in the extension I want to keep, piping that through and searching for which ones match the first part of the filename, then piping that into a delete command.

I want to use standard linux fu as I'm doing this on unraid.

I know this is easy for most of you, which is why I added to do it in least number of characters for a challenge! Oh, and this should work in all subdirectories matching to whatever is in that subdirectory only.

Thanks!

Marshalleq

linux bash shell-script

share|improve this question

asked 1 hour ago

MarshalleqMarshalleq

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Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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add a comment | 

0

I've been browsing around and trying to find the answer - bonus points for doing this in the shortest number of characters.

So I have file1.ex1 file2.ex1 file1.ex2 but no file2.ex2

I want to delete all the ex1 files, but only if ex2 version exists first.

So I assume this means I need to get a directory listing of all files ending in the extension I want to keep, piping that through and searching for which ones match the first part of the filename, then piping that into a delete command.

I want to use standard linux fu as I'm doing this on unraid.

I know this is easy for most of you, which is why I added to do it in least number of characters for a challenge! Oh, and this should work in all subdirectories matching to whatever is in that subdirectory only.

Thanks!

Marshalleq

linux bash shell-script

share|improve this question

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

New contributor

Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

I've been browsing around and trying to find the answer - bonus points for doing this in the shortest number of characters.

So I have file1.ex1 file2.ex1 file1.ex2 but no file2.ex2

I want to delete all the ex1 files, but only if ex2 version exists first.

So I assume this means I need to get a directory listing of all files ending in the extension I want to keep, piping that through and searching for which ones match the first part of the filename, then piping that into a delete command.

I want to use standard linux fu as I'm doing this on unraid.

I know this is easy for most of you, which is why I added to do it in least number of characters for a challenge! Oh, and this should work in all subdirectories matching to whatever is in that subdirectory only.

Thanks!

Marshalleq

linux bash shell-script

share|improve this question

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

New contributor

Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

New contributor

Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

New contributor

Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

New contributor

Marshalleq is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 1 hour ago

MarshalleqMarshalleq

111 bronze badge

1 Answer
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1

find . -name "*.ex1" -type f -exec sh -c '[ -f "${1%1}2" ] && echo rm "$1"' sh {} ;

This finds all regular files with suffix .ex1 recursively in the current directory and executes the shell script inside
of the single quotes for each file ($1) found. It only prints the rm command it would execute.

• 
  [ -f "${1%1}2" ] && tests if argument $1 exists with 2 as last character.
  ${1%1} removes the last 1 and we replace it with 2. The [ -f ... ] && tests if the file exists and executes the following command if the condition is true.

You can remove the echo and run the command again to really delete the files.

If you want to delete the files only in the current directory and not its subdirectories:

for i in *.ex1; do [ -f "${i%1}2" ] && echo rm "$i"; done

Again, you have to remove the echo to execute rm.

share|improve this answer

answered 20 mins ago

FreddyFreddy

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1

find . -name "*.ex1" -type f -exec sh -c '[ -f "${1%1}2" ] && echo rm "$1"' sh {} ;

This finds all regular files with suffix .ex1 recursively in the current directory and executes the shell script inside
of the single quotes for each file ($1) found. It only prints the rm command it would execute.

• 
  [ -f "${1%1}2" ] && tests if argument $1 exists with 2 as last character.
  ${1%1} removes the last 1 and we replace it with 2. The [ -f ... ] && tests if the file exists and executes the following command if the condition is true.

You can remove the echo and run the command again to really delete the files.

If you want to delete the files only in the current directory and not its subdirectories:

for i in *.ex1; do [ -f "${i%1}2" ] && echo rm "$i"; done

Again, you have to remove the echo to execute rm.

share|improve this answer

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges

add a comment | 

1

find . -name "*.ex1" -type f -exec sh -c '[ -f "${1%1}2" ] && echo rm "$1"' sh {} ;

This finds all regular files with suffix .ex1 recursively in the current directory and executes the shell script inside
of the single quotes for each file ($1) found. It only prints the rm command it would execute.

• 
  [ -f "${1%1}2" ] && tests if argument $1 exists with 2 as last character.
  ${1%1} removes the last 1 and we replace it with 2. The [ -f ... ] && tests if the file exists and executes the following command if the condition is true.

You can remove the echo and run the command again to really delete the files.

If you want to delete the files only in the current directory and not its subdirectories:

for i in *.ex1; do [ -f "${i%1}2" ] && echo rm "$i"; done

Again, you have to remove the echo to execute rm.

share|improve this answer

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges

add a comment | 

find . -name "*.ex1" -type f -exec sh -c '[ -f "${1%1}2" ] && echo rm "$1"' sh {} ;

This finds all regular files with suffix .ex1 recursively in the current directory and executes the shell script inside
of the single quotes for each file ($1) found. It only prints the rm command it would execute.

• 
  [ -f "${1%1}2" ] && tests if argument $1 exists with 2 as last character.
  ${1%1} removes the last 1 and we replace it with 2. The [ -f ... ] && tests if the file exists and executes the following command if the condition is true.

You can remove the echo and run the command again to really delete the files.

If you want to delete the files only in the current directory and not its subdirectories:

for i in *.ex1; do [ -f "${i%1}2" ] && echo rm "$i"; done

Again, you have to remove the echo to execute rm.

share|improve this answer

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges

find . -name "*.ex1" -type f -exec sh -c '[ -f "${1%1}2" ] && echo rm "$1"' sh {} ;

for i in *.ex1; do [ -f "${i%1}2" ] && echo rm "$i"; done

share|improve this answer

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges

answered 20 mins ago

FreddyFreddy

5,45111 gold badge66 silver badges2323 bronze badges