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Article #854Re: 初手问一个脚本的小问题
From: Jian Lee
Date: Sat, 27 Sep 2008 08:12
Date: Sat, 27 Sep 2008 08:12
46 lines
3935 bytes
3935 bytes
�Ǻǣ����ÿ�������֪��Ҳ����̫ϸ�� ������һ�� "&"���ó����ں�̨���У���exec��ȫ��һ������IDҲ����� ��ID��һ��ֻ�����ó���̨���У����ǿ��Բ��صȴ���Ľ�����ܵõ� ��shell��ʾ�� ִ��sh�ű��ǿ�һ��sh��̵ģ���ű��е�opera�ĸ���̾������sh����ˡ� yunhai <yunyousihaiAT@gmail.dotcom> writes: > On Sat, 27 Sep 2008 13:23:02 +0800, Jian Lee > <jian.li@turbolinux.com.cn> wrote: > >> �滻����exec����Ľ�̣��ٸ����ӣ� >> >> ��һ��terminal��������� >> # exec ls >> >> ����ʲô�ˣ��Dz���terminal���ڹر��ˣ�����Ĺ����ǣ� >> terminal���������ls��̣�ls����滻����ĸ���̣�Ҳ����terminal�� >> �?terminal��̾Ͳ������ˡ�ls������ϣ��˳��ˣ����ڵ�Ȼ�ر��ˡ� >> >> ��һ�������ǿ��Կ������ ID����һ��terminal�� >> # echo $$ ; ���Կ�����ǰ��̵�ID >> # bash ; �����ڿ���ID��һ�������治һ���ˣ���Ϊ����������һ���µĽ�� >> # echo $$ ; ��ס��������صļҳ�ID�ţ����Ϊ ���ס� >> # exec sh >> # echo $$ ; ���ﷵ�صĽ��͡��ס���һ��ġ� > > лл��Ľ��͡� > > ����һЩ�����ġ� > ��exec���滻��̣�������exec������������&�Ļ�����ôʵ��Ч���Dz��Ǿ� > ����exec�����һ����߶���ʹ���µĽ��ID��������terminal��ִ��exec > opera &��opera &�� > > �������������ڽű���ʹ��exec���������ֱ����terminal��ִ��exec���е㲻 > һ��ֱ��ִ��exec opera֮�ر�opera��terminal����Ҳ����֮�رգ����� > ���ڽű����õĻ����ر�opera��ԭ����terminal����رգ����IDҲ���䡣���� > Ϊʲô�أ���ִ�нű���ʱ���¿�һ��bash�𣿿����ڽű��ﲻ��exec���� > ����Ҳû�з��ֶ��һ��bash�� > > -- > Using Opera's revolutionary e-mail client: http://www.opera.com/mail/
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X-Google-Thread: 10b277,8e750585191b5336 X-Google-Attributes: gid10b277,domainid0,public,usenet X-Google-Language: Chinese,GB Path: arc1-ca.pugleaf.net!g2news1.google.com!news2.google.com!news.glorb.com!news.neu.edu.cn!news.cn99.com!not-for-mail From: Jian Lee <jian.li@turbolinux.com.cn> Newsgroups: cn.comp.os.linux Subject: Re: 初手问一个脚本的小问题 Date: Sat, 27 Sep 2008 16:12:05 +0800 Organization: Bentium Ltd. (CN99) Lines: 46 Message-ID: <d4iqypm2.fsf@dev3-168.dev.cn.tlan> References: <op.uhy15abv5u2pxgyh@yunyousihai.org> <877i9283id.fsf@home.emacser.com> <op.uhy709075u2pxgyh@yunyousihai.org> <7i91dlnk.fsf@dev3-168.dev.cn.tlan> <op.uh2v82dj5u2pxgyh@yunyousihai.org> <abdukvrd.fsf@dev3-168.dev.cn.tlan> <op.uh4pv3dd5u2pxgyh@yunyousihai.org> NNTP-Posting-Host: yy-132-18-a8.bta.net.cn Mime-Version: 1.0 Content-Type: text/plain; charset=gb2312 Content-Transfer-Encoding: 8bit X-Trace: news.cn99.com 1222503124 16643 202.108.132.18 (27 Sep 2008 08:12:04 GMT) X-Complaints-To: usenet@news.cn99.com NNTP-Posting-Date: Sat, 27 Sep 2008 08:12:04 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.0.60 (gnu/linux) Cancel-Lock: sha1:LLDb5c/l4Q+Ht2oCj9l2Dpbp0MI=