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[Linux] eval

bananackck 2025. 2. 20. 22:57

[๋ธ”๋กœ๊ทธ ์ด์ „]

2021.03.07

 

eval

: ๋ฌธ์ž์—ด์„ ๋ช…๋ น๋ฌธ์œผ๋กœ ์ธ์‹ํ•˜์—ฌ ์‹คํ–‰ํ•ด์ฃผ๋Š” ๋ช…๋ น์–ด

N="echo a"
eval $N

<๊ฒฐ๊ณผ>

---> a


๐ŸŽ€ ๋ณ€์ˆ˜์— ๋ฌธ์ž์—ด์˜ ์‹คํ–‰ ๊ฐ’ ์ €์žฅํ•˜๊ธฐ

-> $(๋ฌธ์ž์—ด)

i=abc
N=$(echo $i | tr 'a' 'A')
echo $N

<๊ฒฐ๊ณผ>

----> Abc