Sfdwhf

My ex-girlfriend uses my Apple ID to login to her iPad, do I have to give her my Apple ID password to reset it?

What is the fastest integer factorization to break RSA?

Different meanings of こわい

How does a dynamic QR code work?

Finitely generated matrix groups whose eigenvalues are all algebraic

What is an equivalently powerful replacement spell for Yuan-Ti's Suggestion spell?

Mathematica command that allows it to read my intentions

Did 'Cinema Songs' exist during Hiranyakshipu's time?

Send out email when Apex Queueable fails and test it

How to compactly explain secondary and tertiary characters without resorting to stereotypes?

How could indestructible materials be used in power generation?

Pact of Blade Warlock with Dancing Blade

GFCI outlets - can they be repaired? Are they really needed at the end of a circuit?

Obtaining database information and values in extended properties

The Video Gamers' Double-Duty Crossword

Can a virus destroy the BIOS of a modern computer?

Could neural networks be considered metaheuristics?

how do we prove that a sum of two periods is still a period?

Machine learning testing data

What historical events would have to change in order to make 19th century "steampunk" technology possible?

Rotate ASCII Art by 45 Degrees

How to install cross-compiler on Ubuntu 18.04?

Knowledge-based authentication using Domain-driven Design in C#

Am I breaking OOP practice with this architecture?

Is “/bin/[.exe” a legitimate file? [Cygwin, Windows 10]

How exactly does “/bin/[” work?What is the purpose of square bracket executableCygwin installation messagecygwin awk output to windows line delimetersFile not found (cygwin on Windows)Cygwin: CD to Windows paths easilyCygwin header file locationCygwin on Windows: Can't open displayCygwin/X DISPLAY number no longer :0?Installiing XV on windows using cygwinexecute windows program with parameters from cygwinCygwin + /usr/bin/xterm: Xt error: Can't open display: :0

1

I can not find anything about this, is it a known file?
I am using a CYGWIN based terminal on windows 10

Here are their locations and the commands I used.

$ find -name [*

./bin/[.exe

./usr/bin/[.exe

$ ls -l -a -r /* | grep [-.*>]

...all other files that match this...

-rwxr-xr-x 1 X 197121   67134 Nov  6 14:22 [.exe

drwxr-xr-x 1 X 197121       0 Apr  2 18:15 ..

drwxr-xr-x 1 X 197121       0 Jan 26 03:20 .

I would like more information on this file if anyone has any knowledge about it and whether or not I can remove it.

shell cygwin

share|improve this question

edited 29 mins ago

Joe

asked 2 hours ago

JoeJoe

1092

New contributor

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

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What is the purpose of square bracket executable
  
  – roaima
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Not necessarily, I didn't know what it was, all the times I've ls'ed into /bin/ No google searches for things close to and the title would provide much to the direct answer here below. Updated the title for relevance
  
  – Joe
  31 mins ago
  
  
  

  
  
  
  

add a comment | 

1

I can not find anything about this, is it a known file?
I am using a CYGWIN based terminal on windows 10

Here are their locations and the commands I used.

$ find -name [*

./bin/[.exe

./usr/bin/[.exe

$ ls -l -a -r /* | grep [-.*>]

...all other files that match this...

-rwxr-xr-x 1 X 197121   67134 Nov  6 14:22 [.exe

drwxr-xr-x 1 X 197121       0 Apr  2 18:15 ..

drwxr-xr-x 1 X 197121       0 Jan 26 03:20 .

I would like more information on this file if anyone has any knowledge about it and whether or not I can remove it.

shell cygwin

share|improve this question

edited 29 mins ago

Joe

asked 2 hours ago

JoeJoe

1092

New contributor

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

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Possible duplicate of What is the purpose of square bracket executable
  
  – roaima
  1 hour ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Not necessarily, I didn't know what it was, all the times I've ls'ed into /bin/ No google searches for things close to and the title would provide much to the direct answer here below. Updated the title for relevance
  
  – Joe
  31 mins ago
  
  
  

  
  
  
  

add a comment | 

I can not find anything about this, is it a known file?
I am using a CYGWIN based terminal on windows 10

Here are their locations and the commands I used.

$ find -name [*

./bin/[.exe

./usr/bin/[.exe

$ ls -l -a -r /* | grep [-.*>]

...all other files that match this...

-rwxr-xr-x 1 X 197121   67134 Nov  6 14:22 [.exe

drwxr-xr-x 1 X 197121       0 Apr  2 18:15 ..

drwxr-xr-x 1 X 197121       0 Jan 26 03:20 .

I would like more information on this file if anyone has any knowledge about it and whether or not I can remove it.

shell cygwin

share|improve this question

edited 29 mins ago

Joe

asked 2 hours ago

JoeJoe

1092

New contributor

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

$ find -name [*

./bin/[.exe

./usr/bin/[.exe

$ ls -l -a -r /* | grep [-.*>]

...all other files that match this...

-rwxr-xr-x 1 X 197121   67134 Nov  6 14:22 [.exe

drwxr-xr-x 1 X 197121       0 Apr  2 18:15 ..

drwxr-xr-x 1 X 197121       0 Jan 26 03:20 .

share|improve this question

edited 29 mins ago

Joe

asked 2 hours ago

JoeJoe

1092

New contributor

Joe 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

edited 29 mins ago

Joe

asked 2 hours ago

JoeJoe

1092

New contributor

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

asked 2 hours ago

JoeJoe

1092

New contributor

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

asked 2 hours ago

JoeJoe

1092

1 Answer
1

active

oldest

votes

5

You should not remove that file. In general, don't remove random files that you have not created yourself.

It's the executable file for the [ utility. This utility is exactly the same as test but requires that the last operand is ].

See man [ and man test.

Example of use:

[ -n "hello" ] && echo '"hello" is a non-empty string'

You would also be able to use

/bin/[.exe -n "hello" ] && echo 'That works too'

(though I don't have access to Cygwin to try it, so I don't know if you need to specify the .exe suffix on the command or not)

Note that /bin/[.exe is the executable file for the external [ utility. This utility is very often also available as a built-in utility in your shell. If your shell is bash, then man bash (and help [) would document it.

Related:

• How exactly does "/bin/[" work?

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is ironically enough, hilarious. I did not know that was a legitimate executable. I thought it as a potential security risk through a regex related attack. Thank you very much for this information, it was thoroughly explained well,... formerly not, (now should be for others), provided through google/forum indexing.
  
  – Joe
  40 mins ago
  

  
  
  
  

add a comment | 

Your Answer

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "106"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});

Joe is a new contributor. Be nice, and check out our Code of Conduct.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f510161%2fis-bin-exe-a-legitimate-file-cygwin-windows-10%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

5

You should not remove that file. In general, don't remove random files that you have not created yourself.

It's the executable file for the [ utility. This utility is exactly the same as test but requires that the last operand is ].

See man [ and man test.

Example of use:

[ -n "hello" ] && echo '"hello" is a non-empty string'

You would also be able to use

/bin/[.exe -n "hello" ] && echo 'That works too'

(though I don't have access to Cygwin to try it, so I don't know if you need to specify the .exe suffix on the command or not)

Note that /bin/[.exe is the executable file for the external [ utility. This utility is very often also available as a built-in utility in your shell. If your shell is bash, then man bash (and help [) would document it.

Related:

• How exactly does "/bin/[" work?

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is ironically enough, hilarious. I did not know that was a legitimate executable. I thought it as a potential security risk through a regex related attack. Thank you very much for this information, it was thoroughly explained well,... formerly not, (now should be for others), provided through google/forum indexing.
  
  – Joe
  40 mins ago
  

  
  
  
  

add a comment | 

5

You should not remove that file. In general, don't remove random files that you have not created yourself.

It's the executable file for the [ utility. This utility is exactly the same as test but requires that the last operand is ].

See man [ and man test.

Example of use:

[ -n "hello" ] && echo '"hello" is a non-empty string'

You would also be able to use

/bin/[.exe -n "hello" ] && echo 'That works too'

(though I don't have access to Cygwin to try it, so I don't know if you need to specify the .exe suffix on the command or not)

Note that /bin/[.exe is the executable file for the external [ utility. This utility is very often also available as a built-in utility in your shell. If your shell is bash, then man bash (and help [) would document it.

Related:

• How exactly does "/bin/[" work?

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This is ironically enough, hilarious. I did not know that was a legitimate executable. I thought it as a potential security risk through a regex related attack. Thank you very much for this information, it was thoroughly explained well,... formerly not, (now should be for others), provided through google/forum indexing.
  
  – Joe
  40 mins ago
  

  
  
  
  

add a comment | 

You should not remove that file. In general, don't remove random files that you have not created yourself.

It's the executable file for the [ utility. This utility is exactly the same as test but requires that the last operand is ].

See man [ and man test.

Example of use:

[ -n "hello" ] && echo '"hello" is a non-empty string'

You would also be able to use

/bin/[.exe -n "hello" ] && echo 'That works too'

(though I don't have access to Cygwin to try it, so I don't know if you need to specify the .exe suffix on the command or not)

Note that /bin/[.exe is the executable file for the external [ utility. This utility is very often also available as a built-in utility in your shell. If your shell is bash, then man bash (and help [) would document it.

Related:

• How exactly does "/bin/[" work?

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

[ -n "hello" ] && echo '"hello" is a non-empty string'

/bin/[.exe -n "hello" ] && echo 'That works too'

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430

answered 2 hours ago

Kusalananda♦Kusalananda

139k17259430