2
我有以下bash腳本，它在CLI中運行時沒有問題，但在作爲cron作業運行時失敗。爲什麼這個bash腳本在控制檯上工作，但在作爲cron作業運行時失敗？
#!/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
該錯誤消息我得到（重定向到一個日誌文件）當我運行它作爲一個cron作業是：
ERROR: transfer failed
該錯誤消息我在我的郵件收件箱中得到的是：
Permission denied (publickey).
lost connection
第一個scp（副本）也失敗了（雖然我沒有檢查它）。有誰知道爲什麼會發生這種情況，以及我如何解決它？
BTW：我在Ubuntu LTS 10.0.4
[編輯]
運行此我添加了-i選項來SCP（腳本中第一個命令），並且還增加了調試（使用V選項）。以下是完整的調試跟蹤：
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).
希望這提供了更多的線索
嘗試chmod 644〜/。服務器上的ssh/authorized_keys – 2011-03-31 17:35:19