How do I specify multiple delimiters in awk?

How do I specify multiple delimiters in awk?

For a field separator of any number 2 through 5 or letter a or # or a space, where the separating character must be repeated at least 2 times and not more than 6 times, for example: awk -F'[2-5a# ]{2,6}’ …

How do you use delimiter in awk?

Processing the delimited files using awk

1. -F: – Use : as fs (delimiter) for the input field separator.
2. print $1 – Print first field, if you want print second field use $2 and so on.

How do you split fields in awk?

How to Split a File of Strings with Awk

1. Scan the files, line by line.
2. Split each line into fields/columns.
3. Specify patterns and compare the lines of the file to those patterns.
4. Perform various actions on the lines that match a given pattern.

How do you use multiple delimiters in Cut command?

Use ‘tr’ to change each of the delimiters to a common delimiter. That way ‘cut’ only has to deal with one delimiter. Use multiple ‘cut’s, each with a different delimiter, in a pipeline to get at only the data you want. This can be hard if the delimiters are mixed in the data.

What is awk default delimiter?

By default, awk uses both space and tab characters as the field separator. You can tell awk how fields are separated using the -F option on the command line.

What is the default delimiter used by awk?

The default field delimiter or field separator (FS) is [ \t]+ , i.e. one or more space and tab characters.

How do I concatenate strings in awk?

Instead, concatenation is performed by writing expressions next to one another, with no operator. For example: $ awk ‘{ print “Field number one: ” $1 }’ mail-list -| Field number one: Amelia -| Field number one: Anthony … Without the space in the string constant after the ‘ : ‘, the line runs together.

How do you trim an awk?

To trim the whitespaces in only those lines that contain a specific character, such as a comma, colon, or semi-colon, use the awk command with the -F input separator….Replace Multiple Spaces with Single Space

1. gsub is a global substitution function.
2. [ ]+ represents one or more whitespaces.
3. “ ” represents one white space.

How do I use a substring in awk?

Under Linux, the awk command has quite a few useful functions. One of them, which is called substr, can be used to select a substring from the input. Here is its syntax: substr(s, a, b) : it returns b number of chars from string s, starting at position a.