probably in a loop. Split comma separated values in shell script. 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. 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. IF a trailing comma is acceptable, the easiest way to handle the substitution is printf:. The script should read contents from a file namely xyz. 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. e.g xyz abcd,1234,efgh,7854378 dhnsa,dsakjkdl,43432,ZXDsa the script should store comma (,) seperated values in different variables. The script should read contents from a file namely xyz. A CSV file stores tabular data in plain text format. The option -a with read command stores the word read into an array in bash. Below the code validates that the input is a numerical value between 100 and 1000. It's worth noting that in many contexts, a trailing comma is acceptable in such a list. In simpler words, the long string is split into several words separated by the delimiter and these words are stored in an array. Consider the below CSV file as an example: > cat os_server.csv Unix, dedicated server Linux, virtual server This file contains two fields. probably in a loop. 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. IFS variable will set cvs separated to , (comma). Hey, Scripting Guy! If not, it errors out. For example, instead of my... (5 Replies) 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. Hello all, I am working on a script and have the first part solved of numerical input validation. I have a text file which consists of individual fields separated by commas. 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. 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 … Now I need to be able to read values separated by a comma. You can use while shell loop to read comma-separated cvs file. Each line of the file is a data record. Before executing a script: Using positional […] e.g xyz abcd,1234,efgh,7854378 dhnsa,dsakjkdl,43432,ZXDsa the script should store comma (,) seperated values in different variables. 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]. The read command reads the raw input (option -r) thus interprets the backslashes literally instead of treating them as escape character. Comma is the delimiter and there's no comma at the end. As most of you know, we can define variables in our shell scripts to make our scripts more independent of hard coding. I would like to read the variables until end of the line. 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.). 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