ZhangZhihui's Blog |
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2020年11月12日
摘要:
zzh@ZUBT:~$ echo 'aaa123' > zzh.txt zzh@ZUBT:~$ echo 'aaa456' >> zzh.txt zzh@ZUBT:~$ cmd='grep aaa zzh.txt | grep 123' zzh@ZUBT:~$ eval $cmd aaa123 阅读全文
摘要:
zzh@ZZHPC:~$ if [ 1 -lt 0 -o 1 -gt 0 ]; then echo "yyy"; else echo "nnn"; fi yyy zzh@ZZHPC:~$ if [ 1 -lt 2 -a 1 -gt 0 ]; then echo "yyy"; else echo "n 阅读全文
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