Why does sort say that ɛ = e?

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ɛ ("Latin epsilon") is a letter used in certain African languages, usually to represent the vowel sound in English "bed". In Unicode it's encoded as U+025B, very distinct from everyday e.



However, if I sort the following:



eb
ed
ɛa
ɛc


it seems that sort considers ɛ and e equivalent:



ɛa
eb
ɛc
ed


What's going on here? And is there a way to make ɛ and e distinct for sorting purposes?






sort locale unicode







share|improve this question























  • related What does "LC_ALL=C" do?
    – devWeek
    3 mins ago















up vote
3
down vote

favorite
3












ɛ ("Latin epsilon") is a letter used in certain African languages, usually to represent the vowel sound in English "bed". In Unicode it's encoded as U+025B, very distinct from everyday e.



However, if I sort the following:



eb
ed
ɛa
ɛc


it seems that sort considers ɛ and e equivalent:



ɛa
eb
ɛc
ed


What's going on here? And is there a way to make ɛ and e distinct for sorting purposes?






sort locale unicode







share|improve this question























  • related What does "LC_ALL=C" do?
    – devWeek
    3 mins ago













up vote
3
down vote

favorite
3









up vote
3
down vote

favorite
3






3





ɛ ("Latin epsilon") is a letter used in certain African languages, usually to represent the vowel sound in English "bed". In Unicode it's encoded as U+025B, very distinct from everyday e.



However, if I sort the following:



eb
ed
ɛa
ɛc


it seems that sort considers ɛ and e equivalent:



ɛa
eb
ɛc
ed


What's going on here? And is there a way to make ɛ and e distinct for sorting purposes?






sort locale unicode







share|improve this question















ɛ ("Latin epsilon") is a letter used in certain African languages, usually to represent the vowel sound in English "bed". In Unicode it's encoded as U+025B, very distinct from everyday e.



However, if I sort the following:



eb
ed
ɛa
ɛc


it seems that sort considers ɛ and e equivalent:



ɛa
eb
ɛc
ed


What's going on here? And is there a way to make ɛ and e distinct for sorting purposes?






sort locale unicode




sort locale unicode






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 19 mins ago









jimmij

29.8k867102




29.8k867102










asked 1 hour ago









Draconis

26318




26318











  • related What does "LC_ALL=C" do?
    – devWeek
    3 mins ago

















  • related What does "LC_ALL=C" do?
    – devWeek
    3 mins ago
















related What does "LC_ALL=C" do?
– devWeek
3 mins ago





related What does "LC_ALL=C" do?
– devWeek
3 mins ago











2 Answers
2






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up vote
3
down vote













man sort:



 *** WARNING *** The locale specified by the environment affects sort
 order. Set LC_ALL=C to get the traditional sort order that uses native
 byte values.


So, try: LC_ALL=C sort file.txt






share|improve this answer




















  • That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
    – Draconis
    1 hour ago










  • @Draconis What is "the default locale"?
    – Kamil Maciorowski
    1 hour ago










  • @KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
    – Draconis
    1 hour ago

















up vote
2
down vote













The character ɛ is not equal to e, but some locales can gather these signs close together upon collation. The reason for this is language specific, but also some historical or even political background. For example most people probably expect that €uro currency comes close to Europe in dictionary.



Anyway to see what collation you are currently using run locale, the locale -a will give you the list of locales available on the system and to change collation say to C just for one sorting run LC_COLLATE=C sort file. Finally to see how different locales can sort your file try



for loc in $(locale -a)
 do echo ____"$loc"____
 LC_COLLATE="$loc" sort file
done


Pipe the result to some greping tool to choose locale that fits your need.






share|improve this answer




















  • This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
    – Draconis
    7 mins ago










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2 Answers
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2 Answers
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active

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up vote
3
down vote













man sort:



 *** WARNING *** The locale specified by the environment affects sort
 order. Set LC_ALL=C to get the traditional sort order that uses native
 byte values.


So, try: LC_ALL=C sort file.txt






share|improve this answer




















  • That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
    – Draconis
    1 hour ago










  • @Draconis What is "the default locale"?
    – Kamil Maciorowski
    1 hour ago










  • @KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
    – Draconis
    1 hour ago














up vote
3
down vote













man sort:



 *** WARNING *** The locale specified by the environment affects sort
 order. Set LC_ALL=C to get the traditional sort order that uses native
 byte values.


So, try: LC_ALL=C sort file.txt






share|improve this answer




















  • That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
    – Draconis
    1 hour ago










  • @Draconis What is "the default locale"?
    – Kamil Maciorowski
    1 hour ago










  • @KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
    – Draconis
    1 hour ago












up vote
3
down vote










up vote
3
down vote









man sort:



 *** WARNING *** The locale specified by the environment affects sort
 order. Set LC_ALL=C to get the traditional sort order that uses native
 byte values.


So, try: LC_ALL=C sort file.txt






share|improve this answer












man sort:



 *** WARNING *** The locale specified by the environment affects sort
 order. Set LC_ALL=C to get the traditional sort order that uses native
 byte values.


So, try: LC_ALL=C sort file.txt







share|improve this answer












share|improve this answer



share|improve this answer










answered 1 hour ago









Ipor Sircer

9,6941920




9,6941920











  • That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
    – Draconis
    1 hour ago










  • @Draconis What is "the default locale"?
    – Kamil Maciorowski
    1 hour ago










  • @KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
    – Draconis
    1 hour ago
















  • That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
    – Draconis
    1 hour ago










  • @Draconis What is "the default locale"?
    – Kamil Maciorowski
    1 hour ago










  • @KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
    – Draconis
    1 hour ago















That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
– Draconis
1 hour ago




That works! But why does the default locale consider these completely separate codepoints to be the same? I'm curious why this happens.
– Draconis
1 hour ago












@Draconis What is "the default locale"?
– Kamil Maciorowski
1 hour ago




@Draconis What is "the default locale"?
– Kamil Maciorowski
1 hour ago












@KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
– Draconis
1 hour ago




@KamilMaciorowski An empty value of the environment variable; I'm not sure what locale that corresponds to.
– Draconis
1 hour ago












up vote
2
down vote













The character ɛ is not equal to e, but some locales can gather these signs close together upon collation. The reason for this is language specific, but also some historical or even political background. For example most people probably expect that €uro currency comes close to Europe in dictionary.



Anyway to see what collation you are currently using run locale, the locale -a will give you the list of locales available on the system and to change collation say to C just for one sorting run LC_COLLATE=C sort file. Finally to see how different locales can sort your file try



for loc in $(locale -a)
 do echo ____"$loc"____
 LC_COLLATE="$loc" sort file
done


Pipe the result to some greping tool to choose locale that fits your need.






share|improve this answer




















  • This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
    – Draconis
    7 mins ago














up vote
2
down vote













The character ɛ is not equal to e, but some locales can gather these signs close together upon collation. The reason for this is language specific, but also some historical or even political background. For example most people probably expect that €uro currency comes close to Europe in dictionary.



Anyway to see what collation you are currently using run locale, the locale -a will give you the list of locales available on the system and to change collation say to C just for one sorting run LC_COLLATE=C sort file. Finally to see how different locales can sort your file try



for loc in $(locale -a)
 do echo ____"$loc"____
 LC_COLLATE="$loc" sort file
done


Pipe the result to some greping tool to choose locale that fits your need.






share|improve this answer




















  • This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
    – Draconis
    7 mins ago












up vote
2
down vote










up vote
2
down vote









The character ɛ is not equal to e, but some locales can gather these signs close together upon collation. The reason for this is language specific, but also some historical or even political background. For example most people probably expect that €uro currency comes close to Europe in dictionary.



Anyway to see what collation you are currently using run locale, the locale -a will give you the list of locales available on the system and to change collation say to C just for one sorting run LC_COLLATE=C sort file. Finally to see how different locales can sort your file try



for loc in $(locale -a)
 do echo ____"$loc"____
 LC_COLLATE="$loc" sort file
done


Pipe the result to some greping tool to choose locale that fits your need.






share|improve this answer












The character ɛ is not equal to e, but some locales can gather these signs close together upon collation. The reason for this is language specific, but also some historical or even political background. For example most people probably expect that €uro currency comes close to Europe in dictionary.



Anyway to see what collation you are currently using run locale, the locale -a will give you the list of locales available on the system and to change collation say to C just for one sorting run LC_COLLATE=C sort file. Finally to see how different locales can sort your file try



for loc in $(locale -a)
 do echo ____"$loc"____
 LC_COLLATE="$loc" sort file
done


Pipe the result to some greping tool to choose locale that fits your need.







share|improve this answer












share|improve this answer



share|improve this answer










answered 21 mins ago









jimmij

29.8k867102




29.8k867102











  • This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
    – Draconis
    7 mins ago
















  • This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
    – Draconis
    7 mins ago















This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
– Draconis
7 mins ago




This is a wonderful explanation, but the symbols seem to be considered identical, not just close together.
– Draconis
7 mins ago

















 

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