some-command "$(printf %s, a{b,c,d} )" (Where some-command is a command that runs on a comma separated list, and doesn't care about a trailing comma.). It's worth noting that in many contexts, a trailing comma is acceptable in such a list. probably in a loop. e.g xyz abcd,1234,efgh,7854378 dhnsa,dsakjkdl,43432,ZXDsa the script should store comma (,) seperated values in different variables. A comma-separated values (CSV) file is a delimited text file that uses a comma to separate values. How to split a list by comma not space, while IFS=, read field1 field2 field3 field4 field5 field6; do do stuff done < CSV.file kent$ echo "Hello,World,Questions,Answers,bash shell,script"|awk -F IFS is a shell environment variable so it will remain unchanged within You can set the internal field separator(IFS) variable, and then let it parse … The script should read contents from a file namely xyz. Hey, Scripting Guy! Consider the below CSV file as an example: > cat os_server.csv Unix, dedicated server Linux, virtual server This file contains two fields. A CSV file stores tabular data in plain text format. You can use while shell loop to read comma-separated cvs file. In simpler words, the long string is split into several words separated by the delimiter and these words are stored in an array. If not, it errors out. I need to look at the second field in each line and, if it includes the word Everyone, I then need to take the sixth field in the line and write that value to a second text file. I have a text file which consists of individual fields separated by commas. Here we see how to read the Comma separated value (CSV) file using the while loop in shell script and print these values on the Unix terminal. The read command reads the raw input (option -r) thus interprets the backslashes literally instead of treating them as escape character. I would like to read the variables until end of the line. Below the code validates that the input is a numerical value between 100 and 1000. Shell also has properties with which we can handle text files: files with fields separated by white spaces or CSV files in which the fields are separated by a comma delimiter. Now I need to be able to read values separated by a comma. Hi, In shell script, I have a variable var = xyz, inn, day, night, calif ....n and I would like to read them in to var1 = xzy, var2 = inn, var3= day, var4 = night....var[n]. Below are they ways we can assign values to variables in a shell script Defining variables in the script: Assigning predefined constants to variables with the script. Before executing a script: Using positional […] Split comma separated values in shell script. probably in a loop. Hello all, I am working on a script and have the first part solved of numerical input validation. Let us see in this article how to read and parse a file field by field or column by column and extract data from it using the while loop of shell. IF a trailing comma is acceptable, the easiest way to handle the substitution is printf:. For example, instead of my... (5 Replies) IFS variable will set cvs separated to , (comma). The option -a with read command stores the word read into an array in bash. Each line of the file is a data record. Comma is the delimiter and there's no comma at the end. Reading comma separated variable into other variables in shell script Hi, In shell script, I have a variable var = xyz, inn, day, night, calif ....n and I would like to read them in to var1 = xzy, var2 = inn, var3= day, var4 = night....var. As most of you know, we can define variables in our shell scripts to make our scripts more independent of hard coding. 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