Commands by gangs (1)

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list block devices
Shows all block devices in a tree with descruptions of what they are.

Making scripts runs on backgourd and logging output
Save all output to a log.

Start a local web server in the current directory on a random dynamic port.

list block devices
Shows all block devices in a tree with descruptions of what they are.

Top ten (or whatever) memory utilizing processes (with children aggregate) - Can be done without the multi-dimensional array

Remount root in read-write mode.
Saved my day, when my harddrive got stuck in read-only mode.

Get your Tweets from the command line
Gets the latest Tweets in your friends timeline from Twitter. Uses curl and xmlstarlet.

An alias to select a portion of your desktop and save it as an image.

Find ulimit values of currently running process
When dealing with system resource limits like max number of processes and open files per user, it can be hard to tell exactly what's happening. The /etc/security/limits.conf file defines the ceiling for the values, but not what they currently are, while $ ulimit -a will show you the current values for your shell, and you can set them for new logins in /etc/profile and/or ~/.bashrc with a command like: $ ulimit -S -n 100000 >/dev/null 2>&1 But with the variability in when those files get read (login vs any shell startup, interactive vs non-interactive) it can be difficult to know for sure what values apply to processes that are currently running, like database or app servers. Just find the PID via "ps aux | grep programname", then look at that PID's "limits" file in /proc. Then you'll know for sure what actually applies to that process.

list block devices
Shows all block devices in a tree with descruptions of what they are.


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