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   less    ( 1 )

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Безопасность (Security)

When the environment variable LESSSECURE is set to 1, less runs in a "secure" mode. This means these features are disabled:

! the shell command

| the pipe command

:e the examine command.

v the editing command

s -o log files

-k use of lesskey files

-t use of tags files

metacharacters in filenames, such as *

filename completion (TAB, ^L)

Less can also be compiled to be permanently in "secure" mode.