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I want to check if my software is 64 bit or 32 bit (not the OS). This software is an executable file, and when I check it, no information is given if it is 64-bit or 32-bit.

How do I check if my software is 64-bit or 32-bit?

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2 Answers 2

up vote 15 down vote accepted

You can use the file command to check out what format has that executable. For example:

file /usr/bin/gedit
/usr/bin/gedit: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0x5a388215eb6f60b420fc3b6d68ec52d563071f84, stripped
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Thanks you very much – Levan Mar 22 '14 at 20:41

This simple command will show you whether the executable file is 32 bit(i386) or 64 bit(amd64) .


apt-cache show $(dpkg -S /path/to/the/file | awk -F ':' '{print $1 }') | awk '/Architecture:/ {print $2}' -


$ apt-cache show $(dpkg -S /usr/bin/gedit | awk -F ':' '{print $1 }') | awk '/Architecture:/ {print $2}' -


dpkg -S command grabs the package in which the file actually belongs to.apt-cache show package command will shows the details about the package.From that details, awk grabs only the Architecture part and redirects it to stdout.


You can try this command also,

$ dpkg -l $(dpkg -S /usr/bin/gedit | awk -F ':' '{print $1 }') | awk '/ii/ {print $4}'
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cut -d: -f1 would be shorter here, and note that this only works for installed packages, not some random file in your home folder. Perhaps xargs -r is more appropriate in case the dpkg -S command returns empty. – Lekensteyn Mar 23 '14 at 10:07

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