xmessage (1) Linux Manual Page
NAME xmessage – display a message or query in a window (X-based /bin/echo) SYNOPSIS xmessage [ -buttons label1[:value1],label2[:value2], … ] [ options ] -file filename xmessage [ -buttons label1[:value1],label2[:value2], … ] [ options ] message … DESCRIPTION The xmessage program displays a window containing a message from the command line, a file, or standard input….
