Commands by SuperFly (20)

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Use tcpdump to monitor all DNS queries and responses

print DateTimeOriginal from EXIF data for all files in folder
see output from `identify -verbose` for other keywords to filter for (e.g. date:create, exif:DateTime, EXIF:ExifOffset).

Debug bash shell scripts.
Display commands and their arguments as they are executed. Useful for debugging shell scripts.

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"

Find the top 10 directories containing the highest number of files
It can be used to pinpoint the path(s) where the largest number of files resides when running out of free i-nodes

Search recursively to find a word or phrase in certain file types, such as C code
ack search recursively by default

Sort the size usage of a directory tree by gigabytes, kilobytes, megabytes, then bytes.
Since coreutils 7.6 provides sort -h

Sort files in multiple directories by date
This sorts files in multiple directories by their modification date. Note that sorting is done at the end using "sort", instead of using the "-ltr" options to "ls". This ensures correct results when sorting a large number of files, in which case "find" will call "ls" multiple times.

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"

list files recursively by size


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