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grep for minus (-) sign
Use flag "--" to stop switch parsing

Jump to line X in file in Nano.
Starts the cursor on line X of file foo. Useful for longer files in which it takes a long time to scroll. If X is greater than the number of lines in file foo, it will go to the last existing line.

VMware Server print out the state of all registered Virtual Machines.
I use this command on my machines running VMware Server to print out the state of all registered Virtual machines.

Print all the lines between 10 and 20 of a file
Subtly different to the -n+p method... and probably wrong in so many ways....... But it's shorter. Just.

Sum file sizes
Even simpler! Use du ... the -s and -c flags summarize and print a grand total of all files recursively. The -b flag prints in byte format. You can use the -h flag instead to print in human readable format.

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

pdfcount: get number of pages in a PDF file

Check executable shared library usage
provides list of shared libraries required by executable

Download Video & extract only a specific Time of it

Prepend text to a file


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