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    CentOS中基于不同版本安装重复包的解决方案

    在更新 PHP 版本的时候,出现了NOKEY的错误提示后,暂时没有解决掉这个问题,于是就手动安装了php-mbstring...rpm  包的高版本,这样在接下来的错作中就出现了错误信息:The program package-cleanup is found in the yum-utils package. 什么是yum-utils: yum-utils are tools for manipulating repositories and extended package management. It is a collection of tools and programs for managing yum repositories, installing debug packages, source packages, extended information from repositories and administration.  yum-utils package includes: debuginfo-install - install debuginfo packages and their dependencies package-cleanup - manage package cleanup, duplicates, orphaned packages and outstanding dependency problems repo-graph - outputs a full package dependency list in dot format repo-rss - generates an RSS feed from one or more repositories repoclosure - reads metadata of repositories, checks dependencies and displays list of unresolved dependencies repodiff - takes two or more repositories, returns a list of added, removed or changed packages repomanage - manages a directory of rpm packages, returns a list of newest or oldest packages in a directory repoquery - query yum repositories and get additional information on the them reposync - synchronize a remote yum repository to a local directory using yum to retrieve packages repotrack - track packages and its dependencies and downloads them yum-builddep - installs missing dependencies to build a specified package yum-complete-transaction - finds incomplete or aborted yum transactions and attempts to complete them yum-installed - print a compact package list making use of comps groups yumdownloader - downloads packages from yum repositories including source RPMs 出现这句话说明清除程序包存在并在yum-utils套件包里找到了,看不出安装存在问题。存在不兼容问题的话一般是用yum安装一些rpm packages时候会出现missing dependency error,会有error提示的。 解决办法: yum install yum-utils yum-complete-transaction --cleanup-only 清除可能存在的重复包 package-cleanup --dupes 清除可能存在的损坏包 package-cleanup --problems 清除重复包的老版本: package-cleanup --cleandupes package-cleanup 帮助信息如下: options: -h, --help show th

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    struct sqlite3

    {   sqlite3_vfs *pVfs;            /* OS Interface */   struct Vdbe *pVdbe;           /* List of active virtual machines */   CollSeq *pDfltColl;           /* The default collating sequence (BINARY) */   sqlite3_mutex *mutex;         /* Connection mutex */   Db *aDb;                      /* All backends */   int nDb;                      /* Number of backends currently in use */   int flags;                    /* Miscellaneous flags. See below */   i64 lastRowid;                /* ROWID of most recent insert (see above) */   i64 szMmap;                   /* Default mmap_size setting */   unsigned int openFlags;       /* Flags passed to sqlite3_vfs.xOpen() */   int errCode;                  /* Most recent error code (SQLITE_*) */   int errMask;                  /* & result codes with this before returning */   u16 dbOptFlags;               /* Flags to enable/disable optimizations */   u8 autoCommit;                /* The auto-commit flag. */   u8 temp_store;                /* 1: file 2: memory 0: default */   u8 mallocFailed;              /* True if we have seen a malloc failure */   u8 dfltLockMode;              /* Default locking-mode for attached dbs */   signed char nextAutovac;      /* Autovac setting after VACUUM if >=0 */   u8 suppressErr;               /* Do not issue error messages if true */   u8 vtabOnConflict;            /* Value to return for s3_vtab_on_conflict() */   u8 isTransactionSavepoint;    /* True if the outermost savepoint is a TS */   int nextPagesize;             /* Pagesize after VACUUM if >0 */   u32 magic;                    /* Magic number for detect library misuse */   int nChange;                  /* Value returned by sqlite3_changes() */   int nTotalChange;             /* Value returned by sqlite3_total_changes() */   int aLimit[SQLITE_N_LIMIT];   /* Limits */   struct sqlite3InitInfo {      /* Information used during initialization */     int newTnum;                /* Rootpage of table being initialized */     u8 iDb;                     /* Which db file is being initialized */

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