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docker save -o <path for generated tar file> <image name> docker load -i <path to image tar file> |
docker如何将镜像从一台机器转移到另外一台
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Author Archives: coder4
如何将utf8的表转为utf8mb4
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ALTER TABLE xxx CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci; |
打印log中某一列
例如包含userId的
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awk -F '\t' '{for(i=1; i<=NF; i++){if ($i ~ /.*user_id.*/){print $i}}}' |
Linux输出重复行及对应计数
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sort filename | uniq -c | sort -nr |
Linux取两个文件相同不同的部分
首先要排序
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#find lines only in file1 comm -23 file1 file2 #find lines only in file2 comm -13 file1 file2 #find lines common to both files comm -12 file1 file2 |