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SSH Login without password so that tasks can be automated via shell scripts

The aim is to connect from “hostA” as “userA” to “hostB” as “userB” without being prompted to enter the password for userB@hostB. This allows you to scp files from hostA to hostB, create new directory on hostB from hostA, etc without being promoted for password to connect to hostB from

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Posted in Unix Tutorial

Unix Sed commands for Java developers

sed (stream editor) is one of the powerful workhorse commands in UNIX. Recently I had to use it with “Git” and “Maven” to find text “SNAPSHOT” in all pom.xml files, and manually update them with a realease version like 1.0.2 without the suffix “SNAPSHOT”. Here is the command that I

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Posted in Tools, Unix Interview Q&As, Unix Tutorial

Unix tutorial with MobaXterm

Many industrial Java applications are developed om a WIN32 platfor, but run on a target platform, which is Unix based. If you are a beginner to Unix, and would like to work on an emulator that runs on a Win32 platform, this post is for you. MobaXterm is a set…...

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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 to the remote host server Q2 How will you copy files from a remote server to a local server? A2 By scp ing (i.e. secured copying) to the remote…...

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Shell script interview Q&A for Java developers

Q1 How will you go about reading a CSV file as shown below? A1 Q2 How will you read and then write to another file? A2 Q3 How will you read the file and then write to another file with CSV data in different order? A3 Q4 Can you write…...

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Posted in member-paid, Unix Interview Q&As, Unix Tutorial

♥ 14 Unix interview questions & answers for Java developers

Q1 How do you remove the Control-M characters from a file? A1 Using the sed command that replaces Control-M with nothing Note: The ^M is typed on the command line with ctrl+v and ctrl+M Q2 How will you search for a property named “inbox” within a number of .properties files

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Posted in Tools, Unix Interview Q&As, Unix Tutorial
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