paste

Merge lines of files. More information: https://www.gnu.org/software/coreutils/manual/html_node/paste-invocation.html.

• Join all the lines into a single line, using TAB as delimiter:

paste {{[-s|--serial]}} {{path/to/file}}

• Join all the lines into a single line, using the specified delimiter:

paste {{[-sd|--serial --delimiters]}} {{delimiter}} {{path/to/file}}

• Merge two files side by side, each in its column, using TAB as delimiter:

paste {{path/to/file1}} {{path/to/file2}}

• Merge two files side by side, each in its column, using the specified delimiter:

paste {{[-d|--delimiters]}} {{delimiter}} {{path/to/file1}} {{path/to/file2}}

• Merge two files, with lines added alternatively:

paste {{[-d|--delimiters]}} '\n' {{path/to/file1}} {{path/to/file2}}