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CommandDescriptionExample&Run the previous command in the backgroundls &&&Logical ANDif [ “$X” -ge “0” ] && [ “$X” -le “9”]||Logical ORif [ “$X” -lt “0” ] || [ “$X” -gt “9” ]^Start of linegrep “^X”$End of linegrep “X$”=String equality (cf. -eq)if Continue reading3. Shell comparison operator & reference→

This version of MongoDB has some path breaking features, few are badly required and most of them has given for enhancement of its features. There are many features, but I am talking about in this article which is more important Continue readingMongoDB 4.4 new features→

I have faced many projects which are facing performance issue with MongoDB and I do call for tuning up the performance. What I do apparently in a quick succession, that I listed below the steps. Hardware Resource Firstly, quantify already Continue readingMongoDB performance tuning→

Like other programming languages, shell script also have same loop concept, let us look at different types of loop syntax how it will work in shell scripts. For loop #!/bin/sh for x in hi 1 * 2 A bye do Continue reading2. Shell script loop & conditional statement→

Often we saw that after making individual machine better (Scale up) or distributed the data into shards (Scale Out) or making all read queries route to secondary replica set, yet the queries are not performing well and getting the bottleneck. Continue readingMongoDB query optimization→