fmt command in Linux is used to optimize the processing and output of text files after reading them. The command is used to format text files into a specified width, making them more readable and presentable. The
fmt command is commonly used in Linux systems to format text files before printing or sending them as emails.
fmt command is used to format text files into a specified width, making them more readable and presentable. The command reads the input file and formats it to the specified width, which is usually 72 characters by default. The formatted output is then written to the standard output.
Here is the basic syntax for using the
fmt [options] [file]
file argument is the name of the file that you want to format. If you do not specify a file, the
fmt command reads from the standard input.
Here is an example of how to use the
fmt -w 80 myfile.txt
In this example, the
fmt command is used to format the file
myfile.txt to a width of 80 characters.
fmt command can also be used to format text that is piped into it from another command. For example, you can use the
echo command to pipe text into the
fmt command like this:
echo "This is some text that needs formatting." | fmt
This will format the text to the default width of 72 characters.
fmt command comes with a few options that you can use to customize its behavior. Here is a table of the available options:
|-w||Specifies the width of the output.|
|-s||Splits long lines into multiple lines.|
|-t||Preserves existing tabs.|
|-u||Disables underlining of text.|
|-c||Centers the output.|
|-p||Preserves leading spaces.|
|-n||Does not split words.|
If you are having issues with the
fmt command, here are a few troubleshooting tips:
- Make sure that you are using the correct syntax for the command.
- Check the permissions of the file that you are trying to format. You may need to use the
sudocommand to run the
fmtcommand with elevated privileges.
- If you are piping text into the
fmtcommand, make sure that the text is properly formatted and does not contain any special characters that could cause issues.
fmtcommand is commonly used in Linux systems to format text files before printing or sending them as emails.
- The default width of the
fmtcommand is 72 characters.
fmtcommand can be used to format text that is piped into it from another command.