Commands by AlecSchueler (2)

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Remove old kernel packages

Colored status of running services
Replace service --status-all 2>&1 by service --status-all 2>/dev/null to hide all services with the status [ ? ]

truncate deleted files from lsof
While the posted solution works, I'm a bit uneasy about the "%d" part. This would be hyper-correct approach: $ lsof|gawk '$4~/txt/{next};/REG.*\(deleted\)$/{sub(/.$/,"",$4);printf ">/proc/%s/fd/%s\n", $2,$4}' Oh, and you gotta pipe the result to sh if you want it to actually trim the files. ;) Btw, this approach also removes false negatives (OP's command skips any deleted files with "txt" in their name).

Show all listening and established ports TCP and UDP together with the PID of the associated process
Easy to remenber. Fot TCP only use: netstat -plant

Avoiding history file to be overwritten
If histappend options is set in bash, the file .bash_history will not be overwrite and history list is append to it.

Edit a google doc with vim
Google just released a new commend line tool offering all sorts of new services from the commend line. One of them is uploading a youtube video but there are plenty more google services to interact with. Download it here: http://code.google.com/p/googlecl/ Manual: http://code.google.com/p/googlecl/wiki/Manual This specific command courtesy of lifehacker:http://lifehacker.com/5568817/ Though all can be found in manual page linked above.

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Print names of all video files encoded with h264

Get information about libraries currently installed on a system.
This command is very helpful when we need to duplicate a test scenario and first we want to find out the installed libraries together with the version and release numbers and architecture. (look example) Command can be tuned by choosing just the names of libraries we are interested in. For example glibc and gcc.

Recall last argument of previous command
!$ recalls the last argument of the previous command. This is very useful when you have to operate several operations on the same file for example.


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