Clearcase Key commands check in code on linux

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Clearcase Key commands check in code on linux

Supposed you are implemented done with all your codes(c is the alias for cleartool): New version adds to exist file in VOB kco -c "comments" file cp file.updated file kci -c "comments" file Add new file element to VOB - also needs chec…

5 commands to check memory usage on Linux

Memory Usage On linux, there are commands for almost everything, because the gui might not be always available. When working on servers only shell access is available and everything has to be done from these commands. So today we shall be checking th…

Common administrative commands in Red Hat Enterprise Linux 5, 6, and 7

https://access.redhat.com/articles/1189123 Common administrative commands in Red Hat Enterprise Linux 5, 6, and 7 Updated April 12 2017 at 11:20 AM - English System basics Task RHEL5 RHEL6 RHEL7 View subscription information /etc/sysconfig/rhn/system…

MySQL主从复制中断，报“Error on master: message (format)='Cannot delete or update a parent row: a foreign key constraint fails' error code=1217” 错误

前几天,发现从库挂了,具体报错信息如下: 分析思路 1. 因为我采用的是选择性复制,只针对以下几个库进行复制: card,upay,deal,monitor,collect.所以,不太可能出现对于sas_basic的操作能复制到该从库上. 2. 整个架构是1主2从,且都是选择性复制,上面这个从库是直接复制card,upay,deal,monitor,collect这几个数据库的数据,而另外一个从库则是忽略上述库,如下所示: 怀疑是在上述schema下,执行了DROP TABLE IF EXIST…

check source code after macro expand

Some time I'd like check source code after macro expand. We can use -E option to stop after the preprocessing stage, do not run the compiler. ------------------------------------------------------------------------------------------------------------…

12 Useful “df” Commands to Check Disk Space in Linux

On the internet you will find plenty of tools for checking disk space utilization in Linux. However, Linux has a strong built in utility called ‘df‘. The ‘df‘ command stand for “disk filesystem“, it is used to get full summary of available and used d…