Commands tagged batch rename (8)

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Find all active ip's in a subnet

Print info about your real user.
To get your effective user: whoami

append empty line after every line in file.txt

Copy files based on extension with recursive and keeping directory structure
Copy file theo phần mở rộng c? đệ quy v? giữ nguy?n cấu tr?c thư mục Replace "jar" by extension which you need.

list files recursively by size

Manually Pause/Unpause Firefox Process with POSIX-Signals
Continue with: $killall -CONT -m firefox Suspends all Firefox Threads. Results in Zero CPU load. Useful when having 100+ Tabs open and you temporarily need the power elsewhere. Be careful - might produce RACE CONDITIONS or LOCKUPS in other processes or FF itself. matching is case sensitive.

dump 1KB of data from ram to file

eavesdrop
Record off the microphone on a remote computer and listen to it live through your speakers locally.

Let your computer lull you to sleep
Can change language and speed, see espeak man page for options. (Install espeak in your linux distro via yum or apt-get) For insomniacs you may need to enclose in a while true; do ...; done loop ;)

take a look to command before action
add |sh when you agree the list, I often use that method to prevent typos in dangerous or long operations


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