what meaning of uid

A file has an owner that indicates who created the file. Also, the file has a group number that represents the group to which the file belongs, typically the group to which the file owner belongs.If it is an executable file, at execution time, the

Although we login to the Linux host, the input is our account, but in fact, the Linux host does not directly know your "account name", it only know the ID. The correspondence between ID and account is in/etc/passwd. At least two IDs are obtained for

Android Log Tag meaning, androidlogtag meaning One of the most important methods to analyze Android problems is to analyze logs in events. there are many system logs in the log, some of which are not very familiar with the meaning. The following is

Preface The Mac has a memo on it, and it feels pretty handy. Then you want to do it yourself, do a similar remember gadgets to play. Tool type: Fat service end, thin client mode. The general scenario is that the client just wants to be alerted to

The recent use of curl feeling is still very convenient, looked at the cookie file format of curl generated, some of the value of the meaning is not very clear, to find some information about the cookie looked down, do a memo The cookie file format

A lot of friends in the tuning with MySQL will certainly use the explain to see the execution of the SELECT statement, here is a brief introduction to the results of the meaning of the two columns.1 Type column The official saying that this column

A lot of friends in the tuning with MySQL will certainly use the explain to see the execution of the SELECT statement, here is a brief introduction to the results of the meaning of the two columns.1 Type column The official saying that this column

The meaning of-atime,-ctime,-mtime under LinuxWe are often asked in forums or groups, how to view the creation date of a file under Linux or Unix?It's often said that with the Find command plus option-ctime, the-ctime here is not the create time,

SQL statement meaning DB: query (& quot; SELECTCOUNT (*) FROM & quot ;. DB: table (vgallerys ). & quot; whereuidIN (SELECT & nbsp; pre_home_friend.fuidFROMpre_home_friendWHEREuid $ discuz_uid) meaning of the SQL statement DB: query ("select count (*

SQL statement meaning DB: query (& quot; SELECTCOUNT (*) FROM & quot ;. DB: table ('vgallerys '). & quot; whereuidIN (meaning of SELECT & nbsp; pre_home_fri SQL statement DB: query ("select count (*) FROM". DB: table ('vgallerys '). "where uid IN