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Questions and Answers
What is the purpose of the command 'awk -F',' '{print $1"-"$2}' file.csv'?
What is the purpose of the command 'awk -F',' '{print $1"-"$2}' file.csv'?
- Move fields from file.csv to another location
- Copy fields from file.csv to another file
- Concatenate fields in the second column of file.csv
- Add a delimiter between fields in the second column of file.csv (correct)
Which command is useful for combining datasets with matching records, especially when the records are sorted?
Which command is useful for combining datasets with matching records, especially when the records are sorted?
- join (correct)
- cat
- paste
- cp
What does the '-d' option in the 'paste -d',' file1.txt file2.txt' command do?
What does the '-d' option in the 'paste -d',' file1.txt file2.txt' command do?
- Delete files after pasting
- Define the number of lines to be pasted
- Specify a different delimiter for merging lines horizontally (correct)
- Duplicate the files after pasting
What is the primary function of the 'cat' command in Unix/Linux?
What is the primary function of the 'cat' command in Unix/Linux?
Which command is appropriate for copying files and directories from one location to another?
Which command is appropriate for copying files and directories from one location to another?
What does the 'grep' command with the '-n' option do?
What does the 'grep' command with the '-n' option do?
In the 'sed' command, what does 'sed 's/old/new' file.txt' do?
In the 'sed' command, what does 'sed 's/old/new' file.txt' do?
What is the purpose of the 'awk' command with '{print $1}'?
What is the purpose of the 'awk' command with '{print $1}'?
When using 'grep -l "pattern" *.txt', what does it do?
When using 'grep -l "pattern" *.txt', what does it do?
What is the purpose of 'sed '#,#d' filename.txt' command?
What is the purpose of 'sed '#,#d' filename.txt' command?