-bash: ssh-copy-id: command not found

第一种解决办法：（需要yum工具）

yum install -y openssh-clients

第二种解决办法：（需要网络）

curl -L https://raw.githubusercontent.com/beautifulcode/ssh-copy-id-for-OSX/master/install.sh | sh

第三种解决办法：（以上需求都不具备）

将以下两个脚本放到同一目录下，执行此脚本需要有sudo 权限或是root用户执行

install_ssh-copy-id.sh 脚本

#!/bin/sh
# Installs ssh-copy-id into /usr/local/bin
if [[ $(id -u) != 0 ]]; then
   if command -v sudo >/dev/null 2>&1; then
      SUDO="sudo"
   else
      echo >&2 "Requires sudo but it's not installed. Aborting."
      exit 1
  fi
fi

$SUDO cp ssh-copy-id.sh /usr/local/bin/ssh-copy-id || { echo "Failed to install ssh-copy-id into /usr/local/bin."; exit 1; }
$SUDO chmod +x /usr/local/bin/ssh-copy-id || { echo "Failed to install ssh-copy-id into /usr/local/bin."; exit 1; }

echo "Installed ssh-copy-id into /usr/local/bin."; exit 0;

install_ssh-copy-id.sh

#!/bin/sh

# Shell script to install your public key on a remote machine
# Takes the remote machine name as an argument.
# Obviously, the remote machine must accept password authentication,
# or one of the other keys in your ssh-agent, for this to work.

ID_FILE="${HOME}/.ssh/id_rsa.pub"

if [ "-i" = "$1" ]; then
  shift
  # check if we have 2 parameters left, if so the first is the new ID file
  if [ -n "$2" ]; then
    if expr "$1" : ".*\.pub" > /dev/null ; then
      ID_FILE="$1"
    else
      ID_FILE="$1.pub"
    fi
    shift         # and this should leave $1 as the target name
  fi
else
  if [ x$SSH_AUTH_SOCK != x ] ; then
    GET_ID="$GET_ID ssh-add -L | grep -vxF 'The agent has no identities.'"
  fi
fi

if [ -z "`eval $GET_ID`" ] && [ -r "${ID_FILE}" ] ; then
  GET_ID="cat ${ID_FILE}"
fi

if [ -z "`eval $GET_ID`" ]; then
  echo "$0: ERROR: No identities found" >&2
  exit 1
fi

if [ "$#" -lt 1 ] || [ "$1" = "-h" ] || [ "$1" = "--help" ]; then
  echo "Usage: $0 [-i [identity_file]] [user@]machine" >&2
  exit 1
fi

{ eval "$GET_ID" ; } | ssh $1 "umask 077; test -d .ssh || mkdir .ssh ; cat >> .ssh/authorized_keys; test -x /sbin/restorecon && /sbin/restorecon .ssh .ssh/authorized_keys" || exit 1

cat <<EOF
Now try logging into the machine, with "ssh '$1'", and check in:

  .ssh/authorized_keys

to make sure we haven't added extra keys that you weren't expecting.

EOF

将以上两个脚本放到同一目录下，执行此脚本需要有sudo 或是root用户权限

执行：

 chmod u+x install_ssh-copy-id.sh

执行：

./install_ssh-copy-id.sh

第三中方式与第二种一致，只是把文件下载到了本地，然后简单的修改了下脚本
装载自：https://www.jianshu.com/p/1af231ff2372