Created
October 30, 2021 17:11
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| mkdir NITW NITW/BTECH NITW/MTECH NITW/MCA NITW/BTECH/CSE NITW/MTECH/CSIS | |
| touch NITW/BTECH/p1.txt NITW/MTECH/CSIS/Hello.txt | |
| chmod 777 NITW/MTECH/CSIS/Hello.txt | |
| tree NITW | |
| grep -v -i "that" NITW/BTECH/p1.txt > tempfile && mv tempfile NITW/BTECH/p1.txt | |
| grep -E '[[:digit:]]{5}' NITW/MTECH/CSIS/Hello.txt |
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