我正在尝试在我的本地计算机上启动我的PostgreSQL服务器.但是我收到一条错误消息:
FATAL: could not create shared memory segment: Invalid argument
DETAIL: Failed system call was shmget(key=5432001, size=9781248, 03600).
HINT: This error usually means that PostgreSQL's request for a shared memory segment exceeded your kernel's SHMMAX parameter. You can either reduce the request size or reconfigure the kernel with larger SHMMAX. To reduce the request size (currently 9781248 bytes), reduce PostgreSQL's shared_buffers parameter (currently 1024) and/or its max_connections parameter (currently 13).
If the request size is already small, it's possible that …我想在目录/ home/user/git/app /中执行像'git tag -l'这样的命令,但我实际上在/ home/user中.如何在不改变工作目录的情况下在bash中执行此操作？
所以不是:
cd /home/user/git/app && git tag -l
因为这实际上改变了我的工作目录,并且必须再次执行'cd/home/user'.