我有以下bash脚本,它在CLI中运行时没有问题,但在作为cron作业运行时失败。为什么这个bash脚本在控制台上工作,但在作为cron作业运行时失败?
#!/bin/bash
cd /home/oompah/scripts/tests/
scp -P 12345 file1 [email protected]:~/uploads
if scp -P 12345 [email protected]:/path/to/file2.dat local.dat >&/dev/null ; then
echo "INFO: transfer OK" ;
else
echo "ERROR: transfer failed" ;
fi
该错误消息我得到(重定向到一个日志文件)当我运行它作为一个cron作业是:
ERROR: transfer failed
该错误消息我在我的邮件收件箱中得到的是:
Permission denied (publickey).
lost connection
第一个scp(副本)也失败了(虽然我没有检查它)。有谁知道为什么会发生这种情况,以及我如何解决它?
BTW:我在Ubuntu LTS 10.0.4
[编辑]
运行此我添加了-i选项来SCP(脚本中第一个命令),并且还增加了调试(使用V选项)。以下是完整的调试跟踪:
Executing: program /usr/bin/ssh host 12.34.56.78, user oompah, command scp -v -t ~/uploads
OpenSSH_5.3p1 Debian-3ubuntu6, OpenSSL 0.9.8k 25 Mar 2009
debug1: Reading configuration data /etc/ssh/ssh_config
debug1: Applying options for *
debug1: Connecting to 12.34.56.78 [12.34.56.78] port 12345.
debug1: Connection established.
debug1: identity file /home/oompah/.ssh/id_rsa type 1
debug1: Checking blacklist file /usr/share/ssh/blacklist.RSA-2048
debug1: Checking blacklist file /etc/ssh/blacklist.RSA-2048
debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3p1 Debian-3ubuntu3
debug1: match: OpenSSH_5.3p1 Debian-3ubuntu3 pat OpenSSH*
debug1: Enabling compatibility mode for protocol 2.0
debug1: Local version string SSH-2.0-OpenSSH_5.3p1 Debian-3ubuntu6
debug1: SSH2_MSG_KEXINIT sent
debug1: SSH2_MSG_KEXINIT received
debug1: kex: server->client aes128-ctr hmac-md5 none
debug1: kex: client->server aes128-ctr hmac-md5 none
debug1: SSH2_MSG_KEX_DH_GEX_REQUEST(1024<1024<8192) sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_GROUP
debug1: SSH2_MSG_KEX_DH_GEX_INIT sent
debug1: expecting SSH2_MSG_KEX_DH_GEX_REPLY
debug1: Host '[12.34.56.78]:12345' is known and matches the RSA host key.
debug1: Found key in /home/oompah/.ssh/known_hosts:3
debug1: ssh_rsa_verify: signature correct
debug1: SSH2_MSG_NEWKEYS sent
debug1: expecting SSH2_MSG_NEWKEYS
debug1: SSH2_MSG_NEWKEYS received
debug1: SSH2_MSG_SERVICE_REQUEST sent
debug1: SSH2_MSG_SERVICE_ACCEPT received
debug1: Authentications that can continue: publickey
debug1: Next authentication method: publickey
debug1: Offering public key: /home/oompah/.ssh/id_rsa
debug1: Server accepts key: pkalg ssh-rsa blen 277
debug1: PEM_read_PrivateKey failed
debug1: read PEM private key done: type <unknown>
debug1: read_passphrase: can't open /dev/tty: No such device or address
debug1: No more authentication methods to try.
Permission denied (publickey).
lost connection
Permission denied (publickey).
希望这提供了更多的线索
尝试chmod 644〜/。服务器上的ssh/authorized_keys – 2011-03-31 17:35:19