将命令发送到GNU屏幕
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我有一个名为demo的GNU屏幕，我想向它发送命令。我该怎么做呢？
screen -S demo -X /home/aa/scripts/outputs.sh
No screen session found.
screen -ls
没有找到相关结果
已邀请:
2 个回复
痰降锭骂奸
需要屏幕命令。命令发送输入，并且如果您想从shell提示符下运行该程序，则还必须传递换行符。请注意，这可能是错误的方法。您确定要键入该会话中处于活动状态的内容吗？要将输入定向到特定窗口，请使用其中1是窗口号（您可以改用其标题）。 要在该会话中启动新窗口，请改用命令。 （这是Screen命令，而不是shell命令。）联课
function xscreen { # Usage: xscreen <screen-name> command... local SCREEN_NAME=$1 shift # Create screen if it doesn\'t exist if ! screen -list | grep $SCREEN_NAME >/dev/null ; then screen -dmS $SCREEN_NAME fi # Create I/O pipes local DIR=$( mktemp -d ) local STDIN=$DIR/stdin local STDOUT=$DIR/stdout local STDERR=$DIR/stderr mkfifo $STDIN $STDOUT $STDERR trap \'rm -f $STDIN $STDOUT $STDERR; rmdir $DIR\' RETURN # Print output and kill stdin when both pipes are closed { cat $STDERR >&2 & cat $STDOUT & wait ; fuser -s -PIPE -k -w $STDIN ; } & # Start the command (Clear line ^A^K, enter command with redirects, run with ^O) screen -S $SCREEN_NAME -p0 -X stuff \"$(echo -ne \'\\001\\013\') { $* ; } <$STDIN 1> >(tee $STDOUT) 2> >(tee $STDERR >&2)$(echo -ne \'\\015\')\" # Forward stdin cat > $STDIN # Just in case stdin is closed wait }也许将其与诸如ѭ13之类的东西结合使用，因此您不必具有已在远程主机上定义的功能。 bash脚本中用于处理返回状态和语法错误的较长版本：#!/bin/bash function usage { echo \"$(basename $0) [[user@]server:[port]] <screen-name> command...\" >&2 exit 1 } [[ $# -ge 2 ]] || usage SERVER= SERVERPORT=\"-p 22\" SERVERPAT=\'^(([a-z]+@)?([A-Za-z0-9.]+)):([0-9]+)?$\' if [[ \"$1\" =~ $SERVERPAT ]]; then SERVER=\"${BASH_REMATCH[1]}\" [[ -n \"${BASH_REMATCH[4]}\" ]] && SERVERPORT=\"-p ${BASH_REMATCH[4]}\" shift fi function xscreen { # Usage: xscreen <screen-name> command... local SCREEN_NAME=$1 shift if ! screen -list | grep $SCREEN_NAME >/dev/null ; then echo \"Screen $SCREEN_NAME not found.\" >&2 return 124 # Create screen if it doesn\'t exist #screen -dmS $SCREEN_NAME fi # Create I/O pipes local DIR=$( mktemp -d ) mkfifo $DIR/stdin $DIR/stdout $DIR/stderr echo 123 > $DIR/status trap \'rm -f $DIR/{stdin,stdout,stderr,status}; rmdir $DIR\' RETURN # Forward ^C to screen trap \"screen -S $SCREEN_NAME -p0 -X stuff $\'\\003\'\" INT # Print output and kill stdin when both pipes are closed { cat $DIR/stderr >&2 & cat $DIR/stdout & wait [[ -e $DIR/stdin ]] && fuser -s -PIPE -k -w $DIR/stdin } & READER_PID=$! # Close all the pipes if the command fails to start (e.g. syntax error) { # Kill the sleep when this subshell is killed. Ugh.. bash. trap \'kill $(jobs -p)\' EXIT # Try to write nothing to stdin. This will block until something reads. echo -n > $DIR/stdin & TEST_PID=$! sleep 2.0 # If the write failed and we\'re not killed, it probably didn\'t start if [[ -e $DIR/stdin ]] && kill $TEST_PID 2>/dev/null; then echo \'xscreen timeout\' >&2 wait $TEST_PID 2>/dev/null # Send ^C to clear any half-written command (e.g. no closing braces) screen -S $SCREEN_NAME -p0 -X stuff $\'\\003\' # Write nothing to output, triggers SIGPIPE echo -n 1> $DIR/stdout 2> $DIR/stderr # Stop stdin by creating a fake reader and sending SIGPIPE cat $DIR/stdin >/dev/null & fuser -s -PIPE -k -w $DIR/stdin fi } & CHECKER_PID=$! # Start the command (Clear line ^A^K, enter command with redirects, run with ^O) screen -S $SCREEN_NAME -p0 -X stuff \"$(echo -ne \'\\001\\013\') { $* ; echo \\$? > $DIR/status ; } <$DIR/stdin 1> >(tee $DIR/stdout) 2> >(tee $DIR/stderr >&2)$(echo -ne \'\\015\')\" # Forward stdin cat > $DIR/stdin kill $CHECKER_PID 2>/dev/null && wait $CHECKER_PID 2>/dev/null # Just in case stdin is closed early, wait for output to finish wait $READER_PID 2>/dev/null trap - INT return $(cat $DIR/status) } if [[ -n $SERVER ]]; then ssh $SERVER $SERVERPORT \"$(typeset -f xscreen); xscreen $@\" RET=$? if [[ $RET == 124 ]]; then echo \"To start screen: ssh $SERVER $SERVERPORT \\\"screen -dmS $1\\\"\" >&2 fi exit $RET else xscreen \"$1\" \"${@:2}\" fi