\u6211\u4eec\u53ef\u4ee5\u5411\u7740\u4e3b\u673a\u4e0a\u6240\u6709\u7528\u6237\u6216\u8005\u7279\u5b9a\u7528\u6237\u7684\u7ec8\u7aef\u53d1\u9001\u6d88\u606f<\/p>\n
wall\u547d\u4ee4\u53ef\u4ee5\u7528\u6765\u5411\u7740\u6240\u6709\u5f53\u524d\u767b\u5f55\u7528\u6237\u7684\u7ec8\u7aef\u53d1\u9001\u6d88\u606f,\u6211\u4eec\u5c06\u6d88\u606f\u4f20\u9012\u7ed9\u4e00\u53f0\u670d\u52a1\u5668\u4e2d\u6240\u6709\u7684\u5f53\u524d\u767b\u5f55\u7528\u6237\u6216\u8005\u591a\u4e2a\u5206\u6563\u4e3b\u673a\u7684\u7528\u6237,<\/p>\n
\u6253\u5f00\u7684\u7ec8\u7aef\u5728\/dev\/pts\/\u4e2d\u90fd\u6709\u5bf9\u5e94\u7684\u8bbe\u5907\u8282\u70b9\u6587\u4ef6,\u6211\u4eec\u53ef\u4ee5\u4ee5\u4e00\u79cd\u5411\u7740\u7279\u5b9a\u7684\u7ec8\u7aef\u5199\u5165\u4fe1\u606f\u65b9\u5f0f\u663e\u793a\u6d88\u606f<\/p>\n
\u6211\u4eec\u5411\u7740\u5f53\u524d\u6240\u6709\u7684\u767b\u5f55\u7528\u6237\u53d1\u9001\u6d88\u606f<\/p>\n
cat message | wall<\/p>\n
\u6216\u8005<\/p>\n
wall < message<\/p>\n
\u8fd9\u4e2a\u6d88\u606f\u6982\u8981\u4f1a\u663e\u793a\u662f\u8c01\u53d1\u9001\u4e86\u8fd9\u6761\u6d88\u606f,\u542f\u52a8\u7684\u65f6\u5019,\u4f1a\u5c06\u5199\u5165\u7684\u6d88\u606f\u663e\u793a\u51fa\u6765,\u800c\u4e14\u4e5f\u662f\u9ed8\u8ba4\u542f\u7528\u7684,\u5f53\u7136\u53ef\u4ee5\u5199\u5165\u64cd\u4f5c\u53ef\u4ee5\u5173\u95ed,\u4f46\u662f\u5373\u4f7f\u5173\u95ed\u4e86,\u8d85\u7ea7\u7ba1\u7406\u5458\u4e5f\u53ef\u4ee5\u5199\u51fa\u6765<\/p>\n
\u5141\u8bb8\u5199\u5165\u6d88\u606f,\u53ef\u4ee5\u7528<\/p>\n
mesg y<\/p>\n
\u7981\u6b62\u5219\u662f<\/p>\n
mesg n<\/p>\n
\u5982\u679c\u60f3\u8981\u5411\u6307\u5b9a\u7684\u7528\u6237\u53d1\u9001\u6d88\u606f,\u5219\u53ef\u4ee5\u5229\u7528\u5982\u4e0b\u7684\u811a\u672c<\/p>\n
#! \/bin\/bash<\/p>\n
USER=$1<\/p>\n
devices=`ls \/dev\/pts\/* -l | awk ‘{print $3,$9}’<\/p>\n
| grep $USER | awk ‘{print $2}’`<\/p>\n
for dev in $devices;<\/p>\n
do<\/p>\n
cat \/dev\/stdin > $dev<\/p>\n
done<\/p>\n
\u8fd9\u6837\u7684\u4f7f\u7528\u65b9\u5f0f\u5982\u4e0b<\/p>\n
.\/message.sh Username < message.txt<\/p>\n
\u5176\u539f\u7406\u5f88\u7b80\u5355<\/p>\n
\/dev\/pts\u5305\u542b\u4e86\u5bf9\u5e94\u7ec8\u7aef\u4e2d\u6bcf\u4e2a\u7528\u6237\u7684\u5b57\u7b26\u8bbe\u5907,\u6211\u4eec\u53ef\u4ee5\u67e5\u770b\u8bbe\u5907\u6587\u4ef6\u7684\u5c5e\u4e8e\u8005\u6765\u77e5\u9053\u8c01\u767b\u9646\u4e86\u54ea\u4e2a\u8bbe\u5907,\u6211\u4eec\u63d0\u53d6\u51fa\u6765\u4e86\u4e4b\u540e,\u8fdb\u884c\u5339\u914d<\/p>\n
\u5339\u914d\u4e0a\u4e86\u4e4b\u540e,\u8fdb\u884c\u5faa\u73af\u904d\u5386<\/p>\n
\u904d\u5386\u4e2d,\u6211\u4eec\u5c06\/dev\/stdin\u7684\u8f93\u5165\u4f20\u9012\u7ed9\u5bf9\u5e94\u7684\u8bbe\u5907TTY\u4e0a,\u5f97\u4ee5\u663e\u793a\u6d88\u606f<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6211\u4eec\u53ef\u4ee5\u5411\u7740\u4e3b\u673a\u4e0a\u6240\u6709\u7528\u6237\u6216\u8005 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"_links":{"self":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts\/1531"}],"collection":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1531"}],"version-history":[{"count":0,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=\/wp\/v2\/posts\/1531\/revisions"}],"wp:attachment":[{"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1531"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/xinblog.ltd\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}