Commands by fhh (5)

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See the top 10 IP addresses in a web access log

Function to remove a directory from your PATH
Function to remove a specified path from your PATH environment variable.

Put a console clock in top right corner
This puts a clock in the top right of the terminal. This version doesn't use tput, but uses escape codes

List open TCP/UDP ports

Random unsigned integer
works at least in bash. returns integer in range 0-32767. range is not as good, but for lots of cases it's good enough.

check web server port 80 response header

Mount a Windows share on the local network (Ubuntu) with user rights and use a specific samba user

show ls colors with demo
This can show all ls colors, with a demo.

Swap a file or dir with quick resotre
This lets you replace a file or directory and quickly revert if something goes wrong. For example, the current version of a website's files are in public_html. Put a new version of the site in public_html~ and execute the command. The names are swapped. If anything goes wrong, execute it again (up arrow or !!).

Join lines
awk version of 7210. Slightly longer, but expanding it to catch blank lines is easier: $ awk 'BEGIN{RS="\0"}{gsub(/\n+/,"");print}' file.txt


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