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grep_list: grep from list of patterns

Method_1: commands

Method_1: commands

! Method_1: commands

Hi here is some text this is red.

Generate unmatches using 2 steps
grep  -Ff patterns.txt data.txt     >   match.txt # STEP_1 Generate   matches
grep -vFf match.txt    patterns.txt > unmatch.txt # STEP_2 Generate unmatches

Eaxample:

patterns.txt
DDD
VVV
111
222
KKK
data.txt
AAA
BBB
CCC
DDD
EEE
FFF
GGG
HHH
III
JJJ
KKK
LLL
MMM
NNN
OOO
PPP
QQQ
RRR
SSS
TTT
UUU
VVV
WWW
XXX
YYY
ZZZ
run first command
grep  -Ff patterns.txt data.txt     >   match.txt # STEP_1 Generate   matches
match.txt
DDD
KKK
VVV
run second command
grep -vFf match.txt    patterns.txt > unmatch.txt # STEP_2 Generate unmatches
unmatch.txt
111
222

Method_2: script

chmod +x grep_list.sh
./grep_list.sh patterns.txt match.txt
output:
1: DDD FOUND
2: VVV FOUND
3: 111 NOT_FOUND
4: 222 NOT_FOUND
5: KKK FOUND

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