# TeX/inputlineno

< TeX

## SynopsisEdit

```\inputlineno
```

## DescriptionEdit

\inputlineno is an integer parameter that TeX sets to the current line number of the input file.

## ExamplesEdit

Recall that the command \number will typeset the decimal representation of whatever follows it, and so if the source file begins with

```\number\inputlineno
```

on the first line, then TeX will typeset 1 at the beginning of the page.

If

```\message{\number\inputlineno}
```

occurs on line n of the source file, then TeX will output 'n' to the screen as a message.