Why is process not part of expected process group?
I’m learning about the relationship between processes, process groups (and sessions) in Linux.
linux
What are high memory and low memory on Linux?
I’m interested in the difference between Highmem and Lowmem:
Prevent the line discipline from handling control characters
When you send a control character from the terminal, for example if you pressed Ctrl+C, the line discipline will receive the byte representing this control character (which is 0x03 in the case of Ctrl+C).
Too many levels of symbolic links
I created this file structure:
How can I run a process as its owner or become its owner without logging in?
cron jobs can run as any user, without that user being logged in.
Linux utility to bench mark clock speed of CPU
I have a Linux PC with a 3.4 GHz CPU. I must check this processor to see if it actually runs at that speed. Is there a benchmark available? I ran sysbench but it only provides time of completion, and I must find the maximum (actual) clock rate.
Bash – date, working around the 2038 bug on 32bit LINUX system
I wrote a little bash script that made me stumble across the “Year 2038 Bug”. I did not know about this problem before and I just dare on posting the --debug output I got from date when my script tried to calculate across this magic date (03:14:07 UTC on 19 January 2038).
What do these commands mean?
What would be a more straight forward readable way of these commands?
Cleaner way to delete files on Linux which include a datestamp as part of file name
I have a new requirement to purge MySQL dump files that are older than 30 days. The files use a naming convention of “all-mysql-YYYYMMDD-HHMM.dump”. The files are located on SAN mounted file system, so restoration is not an issue, but the drive space is limited unfortunately and fills up quickly so it requires frequent human intervention.
Detailed sparse file information on Linux
I have a sparse file, in which only some blocks are allocated: