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12 SSH interview Q&As

Q1. What is ssh?
A1. SSH is a secure protocol used for remotely connecting to Linux servers. For example, creating an …

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14 Unix interview Q&As

Q1 How do you remove the Control-M characters from a file?
A1 Using the sed command that replaces Control-M with nothing…

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5 curl vs wget interview Q&As

Q1. What are the differences between curl & wget? A1. wget is a tool to download files from servers. It let’s … … Read more ›...



Hidden Unix, Git & SVN config files

You need to use “ls -la” to list the hidden files in your home (i.e ~) directory. These config files are …

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sed and awk to write shell scripts for Java developers

Q. How would you go about replacing a piece of a text or a phrase from 20,000+ web templates residing on … … Read more ›...



Shell script interview Q&As for Java developers

Q1 How will you go about reading a CSV file as shown below? A1 Q2 How will you read and then … … Read more ›...



Top 10 Linux interview Q&As

Many production systems run on Linux systems, especially the Cloud infrastructure (i.e. AWS & GCP). Even Android uses the Linux kernel … … Read more ›...



Unix history commands for Java developer productivity

When you are using Linux/Unix command line frequently, using the history effectively can be a major productivity boost. You can accomplish …

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Unix remoting interview Q&A for Java developers

Q1 How will you delete files that are older than 7 days in a remote unix server? A1 By ssh ing … … Read more ›...



Unix sed & awk commands in action

This extends sed and awk to write shell scripts for Java developers. sed & awk are very powerful tool for … … Read more ›...



Unix Sed commands for Java developers

sed (stream editor) is one of the powerful workhorse commands in UNIX. Recently I had to use it …

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Unix shell script to upload & download data between HDFS and edge node

In BigData projects relating to HDFS or AWS S3, it is common to have scripts that transfer or download data from … … Read more ›...



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