FUNCTION::TEXT\_STRN(3stap) A collection of standard strin FUNCTION::TEXT\_STRN(3stap)

# [NAME](#NAME)

function::text\_strn - Escape any non-printable chars in a string

# [SYNOPSIS](#SYNOPSIS)

```


    text_strn:string(input:string,len:long,quoted:long)
```

# [ARGUMENTS](#ARGUMENTS)

*input*

the string to escape

*len*

maximum length of string to return (0 implies MAXSTRINGLEN)

*quoted*

put double quotes around the string. If input string is truncated it will have “...” after the second quote

# [DESCRIPTION](#DESCRIPTION)

This function accepts a string of designated length, and any ASCII characters that are not printable are replaced by the corresponding escape sequence in the returned string.

# [SEE ALSO0](#SEE_ALSO0)

[*tapset::string*(3stap)](/man/enterprise-packages/systemtap/tapset::string.3stap)

September 2026 SystemTap Tapset Reference Ver

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Document: function::text_strn(3stap) from systemtap 5.6-r0 (Chainguard OS)
Source: https://sourceware.org/git/systemtap.git