strings (Unix)

In computer software, strings is a program in Unix and Unix-like operating systems that finds and prints text strings embedded in binary files such as executables. It can be used on object files and core dumps.

strings
The strings command
Operating systemUnix, Unix-like, Inferno
TypeCommand

Overview

Strings are recognized by looking for sequences of at least 4 (by default) printable characters terminating in a NUL character (that is, null-terminated strings). Some implementations provide options for determining what is recognized as a printable character, which is useful for finding non-ASCII and wide character text.

Common usage includes piping its output to grep and fold or redirecting the output to a file.[1]

It is part of the GNU Binary Utilities (binutils), and has been ported to other operating systems including Windows.[2]

Example

Using strings to print sequences of characters that are at least 8 characters long (this command prints the system's BIOS information; should be run as root):

dd if=/dev/mem bs=1k skip=768 count=256 2>/dev/null | strings -n 8 | less
gollark: Interesting. How do I connect a regex to ethernet and USB?
gollark: Just download more RAM...
gollark: I could ban string arithmetic in potatOS for type safety reasons.
gollark: Hmm, that's quite cool.
gollark: Is that some kind of haskell compiler? PotatOS *does* have tryhaskell frontend built in.

See also

References
  1. Kiddle, Oliver; Jerry Peek; Peter Stephenson (2005). From Bash to Z Shell. New York, NY: Apress. p. 413. ISBN 978-1-590-59376-9. OCLC 57450917.
  2. cygwin
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