DST does not influence UnixTime or Seconds since Epoch
Seconds since Epoc or Unixtime is ever increasing value and it remains stable (except for leap second). Daylight Savings changes does not affect it.
Tag: one-liner
Find the process monopolizing the CPU without using “top”
`ps -eo pcpu,pid,ruser,args | sort -r -k1 | less` provides in reverse sort order the `pid` that is taking up most of `pcpu` and the `ruser` (real user) with `ar...
snmp : find network information of a system centrally
Using snmpwalk on interface table (1.3.6.1.2.1.4.20.1.1 and 1.3.6.1.2.1.4.20.1.3) one can retrieve network information of a system centrally.
perl : Remove empty lines from an array
Using grep and pattern matching, empty lines can be removed from an array in perl.
Howto rollover a file when size exceeds using unix find
Using -size and -exec flags of find command, one can easily find when the logfile has grown above the threshold and move it to another name in one shot.
php : Automatically updating Year in Copyright information for a website
Using simple year could be automatically updated in Copyright information.
find broken symlinks
Using find and test commands you can search for the dangling or broken soft links on a Unix system.
bash : run command on find results
"find" command allows "-exec command ;" flag to support running a command on result. For the shorter output from find "xargs" can be used.
php : How to find which modules are compiled in
"php -m" provides the list of all compiled in modules.
bash : brace expansion for automatic substitution
Bash expands a list of strings separated by commas with in braces to a list of strings separated by spaces. This can be used to process files without whole lot ...