strings1

Usage

Overview

For each file specified, the strings utility prints contiguous sequences of printable characters that are at least n characters long and are followed by an unprintable character. The default value of n is 4. By default, the strings utility only scans the initialized and loaded sections of ELF objects; for other file types, the entire file is scanned. The strings utility is mainly used for determining the contents of non-text files.

If no file name is specified as an argument, standard input is read.

The following options are available:

-a | --all

For ELF objects, scan the entire file for printable strings.

-e encoding | --encoding=encoding

Select the character encoding to be used while searching for strings. Valid values for argument encoding are:

s

for single 7-bit-byte characters (ASCII, ISO 8859).

S

for single 8-bit-byte characters.

l

for 16-bit little-endian.

b

for 16-bit big-endian.

L

for 32-bit little-endian.

B

for 32-bit big-endian.

The default is to assume that characters are encoded using a single 7-bit byte.

-f | --print-file-name

Print the name of the file before each string.

-h | --help

Print a usage summary and exit.

-n number | --bytes=number | -number Print the contiguous character sequence of at least number characters long, instead of the default of 4 characters. Argument number should specify a positive decimal integer.

-o

Equivalent to specifying -t o.

-t radix | --radix=radix

Print the offset from the start of the file before each string using the specified radix. Valid values for argument radix are:

d

for decimal

o

for octal

x

for hexadecimal

-v | --version

Display a version identifier and exit.

Exit status

The strings utility exits 0 on success, and >0 if an error occurs.

Examples

To display strings in /bin/ls use:

$ strings /bin/ls

To display strings in all sections of /bin/ln use:

$ strings -a /bin/ln

To display strings in all sections of /bin/cat prefixed with the filename and the offset within the file use:

$ strings -a -f -t x /bin/cat