Dialog modale visualizzato dal Javascript

È possibile fare comparire un dialog sopra la pagina, che scompaia con un bottone.

Esempi di programmazione come Script di Shell

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Variabili di sistema

BASH=/bin/bash
BASHOPTS=cmdhist:complete_fullquote:extquote:force_fignore:hostcomplete:interactive_comments:progcomp:promptvars:sourcepath
BASH_ALIASES=()
BASH_ARGC=()
BASH_ARGV=()
BASH_CMDS=()
BASH_LINENO=([0]="0")
BASH_SOURCE=([0]="/usr/lib/cgi-bin/bash/index.cgi")
BASH_VERSINFO=([0]="4" [1]="3" [2]="30" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
BASH_VERSION='4.3.30(1)-release'
CONTEXT_DOCUMENT_ROOT=/usr/lib/cgi-bin/
CONTEXT_PREFIX=/cgi-bin/
DIRSTACK=()
DOCUMENT_ROOT=/var/www/html
EUID=33
GATEWAY_INTERFACE=CGI/1.1
GROUPS=()
HOSTNAME=raspberrymy
HOSTTYPE=arm
HTTP_ACCEPT='text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8'
HTTP_ACCEPT_ENCODING='gzip, deflate'
HTTP_ACCEPT_LANGUAGE=it
HTTP_CONNECTION=keep-alive
HTTP_HOST=10.1.155.180
HTTP_REFERER=http://10.1.155.180/index.html
HTTP_USER_AGENT='Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0'
IFS=$' \t\n'
MACHTYPE=arm-unknown-linux-gnueabihf
OPTERR=1
OPTIND=1
OSTYPE=linux-gnueabihf
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
PIPESTATUS=([0]="0")
PPID=732
PS4='+ '
PWD=/usr/lib/cgi-bin/bash
QUERY_STRING=
REMOTE_ADDR=10.1.155.155
REMOTE_PORT=34070
REQUEST_METHOD=GET
REQUEST_SCHEME=http
REQUEST_URI=/cgi-bin/bash/
SCRIPT_FILENAME=/usr/lib/cgi-bin/bash/index.cgi
SCRIPT_NAME=/cgi-bin/bash/index.cgi
SERVER_ADDR=10.1.155.180
SERVER_ADMIN=webmaster@localhost
SERVER_NAME=10.1.155.180
SERVER_PORT=80
SERVER_PROTOCOL=HTTP/1.1
SERVER_SIGNATURE=$'
Apache/2.4.10 (Raspbian) Server at 10.1.155.180 Port 80
\n' SERVER_SOFTWARE='Apache/2.4.10 (Raspbian)' SHELL=/usr/sbin/nologin SHELLOPTS=braceexpand:hashall:interactive-comments SHLVL=1 TERM=dumb UID=33 _='
'