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Full Discussion: Malicious perl script
Operating Systems Linux Debian Malicious perl script Post 302992344 by drysdalk on Friday 24th of February 2017 03:08:22 AM
Old 02-24-2017
Quote:
Terminal said there was no such thing as 1s
Can I just check - it looks from what you've said that you're trying to type 1s (that's a number one followed by a lower-case letter 'S') rather than ls (that's a lower-case letter 'L' followed by a lower-case letter 'S', which is the correct command).

If that's what you've been doing, could you try again with the correct command name and see what happens please ?

If you have been typing it correctly then your system must be quite badly damaged or missing some very fundamental binaries, since the ls command is pretty much as common as it gets on any UNIX-style system.
 

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tolower(3C)						   Standard C Library Functions 					       tolower(3C)

NAME
tolower - transliterate upper-case characters to lower-case SYNOPSIS
#include <ctype.h> int tolower(int c); DESCRIPTION
The tolower() function has as a domain a type int, the value of which is representable as an unsigned char or the value of EOF. If the argument has any other value, the argument is returned unchanged. If the argument of tolower() represents an upper-case letter, and there exists a corresponding lower-case letter (as defined by character type information in the program locale category LC_CTYPE), the result is the corresponding lower-case letter. All other arguments in the domain are returned unchanged. RETURN VALUES
On successful completion, tolower() returns the lower-case letter corresponding to the argument passed. Otherwise, it returns the argument unchanged. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
_tolower(3C), setlocale(3C), attributes(5), standards(5) SunOS 5.10 14 Aug 2002 tolower(3C)
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