What is Grep?
1.
"To search" - Derives from the standard Unix search utility of the same name.
Please grep the movie listings to see what time the movie starts.
2.
Grep is a UNIX/LINUX utility that searches the named input FILE/s for lines containing a match to the
given PATTERN.
dmesg | grep -i 'usb'
here the dmesg command is piped through grep to extract any patterned data matching 'usb'. The -i switch is used to tell grep to ignore the case of the letters 'usb'.
3.
To find a pattern in a given input.
grep "pattern" FILE
Or:
"I grep'd your product's manual, but found nothing about 'what to do if product is on fire'."
See
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