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file_manipulation:warp:63a4e7ade76260ddef0e586180a62531
Insert a line at a specific line number
$ sed -i '' '${line_number}i\
$ ${line_number} ${text}' ${file_name}
$ ${line_number} ${text}' ${file_name}
try on your machine
This command is using the sed
command-line tool to insert a new line into a specific line number in a file.
Here is the breakdown of the command:
sed
: The command for stream editor.-i ''
: The option to edit the file in-place. It also specifies an empty string as a backup file extension (which means no backup file will be created).'${line_number}i\
: This is the actual sed command.${line_number}
is a placeholder for the line number where the new line will be inserted. Thei\
indicates that a line will be inserted before the specified line number.${line_number} ${text}'
: This is another placeholder for the actual content of the new line.${text}
stands for the desired text to be inserted.${file_name}
: The name of the file to be modified.
In summary, this command will insert a new line containing ${line_number} ${text}
(where ${line_number}
and ${text}
represent actual values) at the specified ${line_number}
in the file specified by ${file_name}
. The original file will be modified directly without creating a backup.
This explanation was created by an AI. In most cases those are correct. But please always be careful and
never run a command you are not sure if it is safe.