Using the column command, we can display a much clear output as follows, where the -t helps to determine the number of columns the input contains and creates a table and the -s specifies a delimiter character. Sample Output pos|author|articles|comments To demonstrate this, run the cat command below to view the tecmint-authors.txt file. To understand more clearly, we have created a following file “ tecmint-authors.txt” which contains a list of top 10 authors names, number of articles written and number of comments they received on the article till now. Read Also: 12 Useful Commands For Filtering Text for Effective File Operations in Linux We can use the column utility to transform standard input or a file content into tabular form of multiple columns, for a much clear output.
#Ssh search for text in files output file how to#
This short article will demonstrate how to display command output or a file content in a much clear “ columnated” format. ServerAliveInterval and ServerAliveCountMax parameters have been defined to increase the SSH connection time.Are you fed up of viewing congested command output or file content on the terminal. The compression parameter has been defined to compress the data. The IdentifyFile parameter has defined the location of the public key. The IP address value s, port number, IndentityFile, compression, ServerAliveInterval, and ServerAliveCountMax parameters have been defined in the third host. The parameters of the third host are defined for all hosts. The value of the ForwardX11 is set to ‘ yes ’ for the second host, which means it will automatically redirect the X11 connection over the secure channel. The second host is ‘ ,’ and the hostname is an IP address. It will connect to the SSH server using the default port, 22. The first host is ‘fahmida,’ and the hostname is ‘Yasmin. Here, three types of hosts have been defined. ssh inside the home directory of the client user and create a configuration file named config with the following content inside this folder. Create User Specific SSH Configuration FileĬreate a folder named. How to use a custom client-side config file has been shown in the next part of this tutorial. But if you want to apply the setting for the particular user, it is better to use the custom configuration file applicable to that user. It contains the settings that are applicable for all users of the SSH client. You can use the default client-side configuration file to set up config values, and the file path is /etc/ssh/ssh_config. The default value of this option is 0, which means no message will be sent to the server. It is used to set the timeout interval in seconds, after which if no response has been received from the server. It is used to set the number of server alive messages. The values of this option can be QUIET, FATAL, ERROR, INFO, VERBOSE, DEBUG, DEBUG1, DEBUG2, and DEBUG3. It is used to define the verbosity level that is used when logging messages from ssh. It is used to specify the public key path that the SSH client will use for authentication.
The value of this option can be yes or no. It is used to redirect the X11 connection automatically over the secure channel and the DISPLAY set. The compression will be used if it is set to yes. It is used to define the port number that is used for listening to the server connection.
It is used to set the username of the remote server. If the host identifier defines the original hostname, then it is not required to set. It is used to define the hostname or IP address of your remote server. The private key will be stored in the remote server, and the public keys will be stored in the client securely. Run the following command to create the public key and the private key. Generate the SSH Key pairs to execute the commands in the remote server. Prerequisitesīefore starting the steps of this tutorial, the following steps will be required to complete.Įnable the SSH service on Ubuntu if it is not enabled before. The use of SSH config files for accessing the remote servers regularly have shown in this tutorial. Another solution is to create an SSH config file for each user to save the different SSH options for the different remote systems. The user can create the alias command of the bash for the remote connection that is easier to remember. This problem can be solved in multiple ways. But it is not an efficient way to do the tasks. When the user needs to access the remote servers frequently using SSH protocol, then the user will require to remember the IP addresses, usernames, different port numbers, and command-line options.
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