keytool error bash: keytool: command not found

Question

I have tried to execute keytool from Java bin directory but I get an error with warning bash: keytool: command not found.

root@xxxxxx]# keytool -genkey -alias mypassword -keyalg RSA

bash: keytools: command not found

score 96 · Accepted Answer · edited May 25 '20 at 12:49

96

These are the steps which solved my problem:

Search the path where my java was installed
```
find / -name jre
```
Move to java directory (where jre was installed on my server)
```
cd /path/to/jre/bin
```

Create SSL certificate with keytool command

./keytool -genkey -alias [mypassword] -keyalg [RSA]

edited May 25 '20 at 12:49

Chaminda Bandara

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answered Jun 10 '13 at 09:56

Xcalibur

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@user217929 how can we solve this problem by adding `keytool` to `$PATH` so that the command can be executed from any directory? – qualebs May 23 '17 at 09:10
9

Add `export PATH=$PATH:/path/to/jre/bin` to your `.bashrc` file. – Daniel Gray Aug 22 '17 at 12:04
1

note that the keytool is not in the jre folder, but in the bin folder – Allie Feb 06 '20 at 07:05
People who are facing this issue inside docker image( I faced it in logstash 7.16.1), can use RUN cd ../.. && find / -iname keytool to find the correct path of it and change it in Dockerfile. Also, these debugging steps will be applicable to cacert file. – Moksh Dec 16 '21 at 06:30
`alias keytool=$JAVA_HOME/bin/keytool` – madebydavid May 04 '22 at 11:49

score 20 · Answer 2 · answered May 02 '13 at 12:26

20

Use

./keytool -genkey -alias mypassword -keyalg RSA

answered May 02 '13 at 12:26

Michael

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Where will be the generated file location? – deva11 Jan 29 '18 at 10:30

score 11 · Answer 3 · edited Aug 31 '20 at 13:43

11

This worked for me

sudo apt install openjdk-8-jre-headless

edited Aug 31 '20 at 13:43

Dharman

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answered Aug 19 '20 at 13:06

JMan

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score 7 · Answer 4 · answered May 09 '14 at 18:15

Ensure jre is installed.

cd /path/to/jre/bin/folder

As keytool file is present in the bin folder of jre, give path till bin as in the command above.

Then you can do:

keytool -genkey -alias aliaskeyname -keyalg RSA -keystore C:\mykeystore

The additional option -keystore will help you to specify the path where you want the generated self signed certificate.

score 7 · Answer 5 · answered May 16 '18 at 16:06

7

If you are looking for keytool because you are working with Android studio / Google Firebase, there is a keytool bundled with Android Studio. After extracting the zip file, the path to keytool is android-studio/jre/bin.

answered May 16 '18 at 16:06

P.R.

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AldaronLau · Answer 6 · 2015-09-12T01:53:29.813

6

It seems that calling sudo update-alternatives --config java effects keytool. Depending on which version of Java is chosen it changes whether or not keytool is on the path. I had to chose the open JDK instead of Oracle's JDK to not get bash: /usr/bin/keytool: No such file or directory.

edited Sep 12 '15 at 01:53

answered Sep 12 '15 at 00:28

AldaronLau

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score 6 · Answer 7 · answered Oct 31 '17 at 07:02

6

find your jre location ::sudo find / -name jre And then :: sudo update-alternatives --install /usr/bin/keytool keytool /opt/jdk/<jdk.verson>/jre/bin/keytool 100

answered Oct 31 '17 at 07:02

MSR SHAHEEN

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score 3 · Answer 8 · answered Nov 21 '18 at 15:15

Keytool comes with your Java library. So you have to execute the Keytool command from your /Library/Java/JavaVirtualMachines/jdk1.8.0_171.jdk/Contents/Home/jre/bin directory. Or you can add JAVA_HOME to your environmental variables (Windows) or ~/.bash_profile (Linux)

score 2 · Answer 9 · answered Aug 29 '14 at 22:56

2

You tried:

sudo apt-get install oracle-java6-installer --reinstall

and:

sudo update-alternatives --config keytool

answered Aug 29 '14 at 22:56

Hpsaturn

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score 1 · Answer 10 · edited Mar 12 '20 at 00:08

You could also put this on one line like so:

/path/to/jre/bin/keytool -genkey -alias [mypassword] -keyalg [RSA]

Wanted to include this as a comment on piet.t answer but I don't have enough rep to comment.

See the "signing" section of this article that describes how to access the keytool.exe without changing your working directory to the path: https://flutter.dev/docs/deployment/android#signing-the-app

Note that they say you can type in space separated folder names like /"Program Files"/ with quotes but I found in bash i had to separate with back slashes like /Program\ Files/.

score 1 · Answer 11 · answered Mar 26 '20 at 18:24

If the jre is installed on your machine properly then look for keytool in jre or in jre/bin

to find where jre is installed, use this

sudo find / -name jre
Then look for keytool in path_to_jre or in path_to_jre/bin
cd to keytool location
then run ./keytool
Make sure to add the the path to $PATH by

export PATH=$PATH:location_to_keytool
To make sure you got it right after this, run

where keytool
for future edit you bash or zshrc file and source it

score 1 · Answer 12 · answered Jun 19 '20 at 10:50

If you are not using openjdk, use the below commands to set your keytool.

sudo update-alternatives --install "/usr/bin/keytool" "keytool" "/usr/lib/jvm/java8/jdk1.8.0_251/bin/keytool" 1

AND

sudo update-alternatives --set keytool /usr/lib/jvm/java8/jdk1.8.0_251/bin/keytool

This worked for me!

score 0 · Answer 13 · edited Oct 17 '17 at 10:37

0

Please follow the steps:

first set the domain using setDomain.sh command go to domain/bin location and execute ./setDomain.sh command
go to java/bin folder and execute keytool command.

keytool -genkey -keyalg RSA -kaysize 2048 -alias name -kaystore file.jks

edited Oct 17 '17 at 10:37

MLavoie

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answered Sep 04 '17 at 14:30

shyam k

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keytool error bash: keytool: command not found

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