ccat is command line similar to cat command in Linux that displays the content of a file with syntax high lighting for the following programming languages: Javascript, Java, Go, Ruby, C, Python and Json.

 

To install ccat utility in your Linux distribution, first, assure that the wget utility is present in your system. If the wget command line is not installed in the system, issue the below command to install it:

# yum install wget        [On CentOS/RHEL/Fedora]
# apt-get install wget    [On Debian and Ubuntu]

 

In order to install the latest version of ccat command line via the latest compiled binaries, first, download the compressed tarball by issuing the below command. The binary and source code releases archives can be found at the official ccat github webpage.

-------------- On 64-Bit -------------- 
# wget https://github.com/jingweno/ccat/releases/download/v1.1.0/linux-amd64-1.1.0.tar.gz 

-------------- On 32-Bit -------------- 
# wget https://github.com/jingweno/ccat/releases/download/v1.1.0/linux-386-1.1.0.tar.gz 

 

After archive download completes, list the current working directory to show the files, extract the ccat tarball (the linux-amd64-1.x.x Tarball file) and copy the ccat executable binary from the extracted tarball into a Linux executable system path, such as /usr/local/bin/ path, by issuing the below commands.

# ls
# tar xfz linux-amd64-1.1.0.tar.gz 
# ls linux-amd64-1.1.0
# cp linux-amd64-1.1.0/ccat /usr/local/bin/
# ls -al /usr/local/bin/

 

If for some reasons the ccat file from your executable system path has no executable bit set, issue the below command to set executable permissions for all system users.

# chmod +x /usr/local/bin/ccat

 

In order to test ccat utility capabilities against a system configuration file, issue the below commands. The content of the displayed files should be highlighted according to file programming language syntax, as illustrated in the below command examples.

# ccat /etc/sysconfig/network-scripts/ifcfg-ens33 
# ccat /etc/fstab 

 

In order to replace cat command with ccat command system-wide, add a bash alias for ccat in system bashrc file, log out from the system and log in back again to apply the configuration.

-------------- On CentOS, RHEL & Fedora -------------- 
# echo "alias cat='/usr/local/bin/ccat'" >> /etc/bashrc 
# exit

-------------- On Debiab & Ubuntu -------------- 
# echo "alias cat='/usr/local/bin/ccat'" >> /etc/profile
# exit

 

Finally, run cat command against an arbitrary configuration file to test if ccat alias has replaced cat command, as shown in the below example. The output file syntax should be highlighted now.

# cat .bashrc

 

ccat utility can also be used to concatenate multiple files and display the output in HTML format, as illustrated in the below example.

# ccat --html /etc/fstab /etc/sysconfig/network-scripts/ifcfg-ens33> /var/www/html/ccat.html

 

However, you will need a web server installed in your systems, such as Apache HTTP server or Nginx, to display the content of the HTML file.

 

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