Date: Fri, 17 May 2002 10:46:09 +0800
From: "liuc" <liuchao@atm.mdc.tsinghua.edu.cn>
To: <freebsd-questions@freebsd.org>
Subject: What's the 'X' means in the shell test: if [ "X${SNAPDATE}" != "X" ];
Message-ID: <001101c1fd4d$00255400$4e406fa6@mountain>
next in thread | raw e-mail | index | archive | help
This is a multi-part message in MIME format. ------=_NextPart_000_000E_01C1FD90.0E37F230 Content-Type: text/plain; charset="gb2312" Content-Transfer-Encoding: base64 DQpUWVBFPSJGcmVlQlNEIg0KUkVWSVNJT049IjMuMyINCkJSQU5DSD0iUkVMRUFTRSINClJFTEVB U0U9IiR7UkVWSVNJT059LSR7QlJBTkNIfSINClNOQVBEQVRFPSIiDQppZiBbICJYJHtTTkFQREFU RX0iICE9ICJYIiBdOyB0aGVuDQogUkVMRUFTRT0iJHtSRUxFQVNFfS0ke1NOQVBEQVRFfSINCmZp DQpWRVJTSU9OPSIke1RZUEV9ICR7UkVMRUFTRX0iDQoNCmlmIFsgIlgke1BBUkFNRklMRX0iICE9 ICJYIiBdOyB0aGVuDQogUkVMREFURT0kKGF3ayAnL19fRnJlZUJTRF92ZXJzaW9uLipwcm9wYWdh dGVkIHRvIG5ld3ZlcnMvIHtwcmludCAkM30nIFwNCiAgJHtQQVJBTUZJTEV9KQ0KZWxzZQ0KIFJF TERBVEU9JChhd2sgJy9fX0ZyZWVCU0RfdmVyc2lvbi4qcHJvcGFnYXRlZCB0byBuZXd2ZXJzLyB7 cHJpbnQgJDN9JyBcDQogICQoZGlybmFtZSAkMCkvLi4vc3lzL3BhcmFtLmgpDQpmaQ0K ------=_NextPart_000_000E_01C1FD90.0E37F230 Content-Type: text/html; charset="gb2312" Content-Transfer-Encoding: base64 PCFET0NUWVBFIEhUTUwgUFVCTElDICItLy9XM0MvL0RURCBIVE1MIDQuMCBUcmFuc2l0aW9uYWwv L0VOIj4NCjxIVE1MPjxIRUFEPg0KPE1FVEEgY29udGVudD0idGV4dC9odG1sOyBjaGFyc2V0PWdi MjMxMiIgaHR0cC1lcXVpdj1Db250ZW50LVR5cGU+DQo8TUVUQSBjb250ZW50PSJNU0hUTUwgNS4w MC4zMzE1LjI4NzAiIG5hbWU9R0VORVJBVE9SPg0KPFNUWUxFPjwvU1RZTEU+DQo8L0hFQUQ+DQo8 Qk9EWSBiZ0NvbG9yPSNmZmZmZmY+DQo8RElWPjxGT05UIA0Kc2l6ZT0yPjxCUj5UWVBFPSJGcmVl QlNEIjxCUj5SRVZJU0lPTj0iMy4zIjxCUj5CUkFOQ0g9IlJFTEVBU0UiPEJSPlJFTEVBU0U9IiR7 UkVWSVNJT059LSR7QlJBTkNIfSI8QlI+U05BUERBVEU9IiI8QlI+aWYgDQpbICJYJHtTTkFQREFU RX0iICE9ICJYIiBdOyANCnRoZW48QlI+Jm5ic3A7UkVMRUFTRT0iJHtSRUxFQVNFfS0ke1NOQVBE QVRFfSI8QlI+Zmk8QlI+VkVSU0lPTj0iJHtUWVBFfSANCiR7UkVMRUFTRX0iPC9GT05UPjwvRElW Pg0KPERJVj4mbmJzcDs8L0RJVj4NCjxESVY+PEZPTlQgc2l6ZT0yPmlmIFsgIlgke1BBUkFNRklM RX0iICE9ICJYIiBdOyB0aGVuPEJSPiZuYnNwO1JFTERBVEU9JChhd2sgDQonL19fRnJlZUJTRF92 ZXJzaW9uLipwcm9wYWdhdGVkIHRvIG5ld3ZlcnMvIHtwcmludCAkM30nIA0KXDxCUj4mbmJzcDsm bmJzcDske1BBUkFNRklMRX0pPEJSPmVsc2U8QlI+Jm5ic3A7UkVMREFURT0kKGF3ayANCicvX19G cmVlQlNEX3ZlcnNpb24uKnByb3BhZ2F0ZWQgdG8gbmV3dmVycy8ge3ByaW50ICQzfScgDQpcPEJS PiZuYnNwOyZuYnNwOyQoZGlybmFtZSAkMCkvLi4vc3lzL3BhcmFtLmgpPEJSPmZpPC9GT05UPjwv RElWPjwvQk9EWT48L0hUTUw+DQo= ------=_NextPart_000_000E_01C1FD90.0E37F230-- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?001101c1fd4d$00255400$4e406fa6>