How do I print a second column in Unix?

4 Answers

1. cut -d’ ‘ -f2.
2. awk ‘{print $2}’

How do I print specific columns in Unix?

How to do it…

1. To print the fifth column, use the following command: $ awk ‘{ print $5 }’ filename.
2. We can also print multiple columns and insert our custom string in between columns. For example, to print the permission and filename of each file in the current directory, use the following set of commands:

How do I find the third column in Unix?

To get third column in tab delimited file, you can simply call it as cut -f3 . Different delimiter can be passed via -d parameter, e.g.: cut -f3 -d: .

How do you find the second occurrence of a string in Unix?

Shell/Bash answers related to “how to grep the second occurrence in unix”

1. count occurrences of word in unix bash.
2. grep lines between two patterns in unix.
3. grep nth line after match.
4. grep first match.
5. grep until third match.
6. bash grep all after match.
7. grep all lines after first match.
8. grep third line after match.

How do I print a specific column in bash?

If you only have digits in the pid field, extract the digits: $ awk ‘match($0,/[0-9]+/){print substr($0,RSTART,RLENGTH)}’ file 20841 20281 Or use more-than-one space as field-separator after record 4: $ awk -F” +” ‘NR>=5{print $2}’ file 20841 20281 …

How do I print the first column in Linux?

The first column of any file can be printed by using $1 variable in awk. But if the value of the first column contains multiple words then only the first word of the first column prints. By using a specific delimiter, the first column can be printed properly.

Which command is used to extract specific columns from the file?

cut command
To extract specific columns from a file, ____ command is used. Explanation: cut command is used for cutting specific columns.

How do I print the third column in Linux?

1. -d’ ‘ – mean, use space as a delimiter.
2. -f3,5 – take and print 3rd and 5th column.

How do you find the nth column in Unix?

How do you find the nth line in Unix?

1. head / tail. Simply using the combination of the head and tail commands is probably the easiest approach. …
2. sed. There are a couple of nice ways to do this with sed . …
3. awk. awk has a built in variable NR that keeps track of file/stream row numbers.

What is the use of sed command?

The sed command, short for stream editor, performs editing operations on text coming from standard input or a file. sed edits line-by-line and in a non-interactive way. This means that you make all of the editing decisions as you are calling the command, and sed executes the directions automatically.

What is sed and awk in Linux?

awk and sed are text processors. Not only do they have the ability to find what you are looking for in text, they have the ability to remove, add and modify the text as well (and much more). awk is mostly used for data extraction and reporting. sed is a stream editor.

How do I print the first column in Unix?

How do I show a column in Linux?

column command in Linux is used to display the contents of a file in columns. The input may be taken from the standard input or from the file. This command basically breaks the input into multiple columns. Rows are filled before columns.

How do I show columns in Linux?

1. column command in Linux is used to display the contents of a file in columns. The input may be taken from the standard input or from the file. This command basically breaks the input into multiple columns. Rows are filled before columns.
2. Syntax:
3. Example:
4. Options:

How can I get specific field data from a file in Unix?

1) The cut command is used to display selected parts of file content in UNIX. 2) The default delimiter in cut command is “tab”, you can change the delimiter with the option “-d” in the cut command. 3) The cut command in Linux allows you to select the part of the content by bytes, by character, and by field or column.

Which command is used to extract a column from a text file in Unix?

Q.	Which command is used to extract a column from a text file
B.	get
C.	cut
D.	tar
Answer» c. cut

How do you display nth record in Unix?

Below are three great ways to get the nth line of a file in Linux.

1. head / tail. Simply using the combination of the head and tail commands is probably the easiest approach.
2. sed. There are a couple of nice ways to do this with sed .
3. awk. awk has a built in variable NR that keeps track of file/stream row numbers.

How do I print a specific line in Linux?

1. awk : $>awk ‘{if(NR==LINE_NUMBER) print $0}’ file.txt.
2. sed : $>sed -n LINE_NUMBERp file.txt.
3. head : $>head -n LINE_NUMBER file.txt | tail -n + LINE_NUMBER Here LINE_NUMBER is, which line number you want to print. Examples: Print a line from single file. To print 4th line from the file then we will run following commands.

How do I search for a sed?

Find and replace text within a file using sed command

1. Use Stream EDitor (sed) as follows:
2. sed -i ‘s/old-text/new-text/g’ input.
3. The s is the substitute command of sed for find and replace.
4. It tells sed to find all occurrences of ‘old-text’ and replace with ‘new-text’ in a file named input.

How do you find a string using sed?

Find and Replace String with sed

1. -i – By default, sed writes its output to the standard output.
2. s – The substitute command, probably the most used command in sed.
3. / / / – Delimiter character.
4. SEARCH_REGEX – Normal string or a regular expression to search for.
5. REPLACEMENT – The replacement string.