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I realize how to do it in python, just with
line = db_file.readline() ll=string.split(line) but how can I do the same in bash? is it really possible to do it in a so simple way?
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The special shell variable $IFS is used in bash for splitting a string into words. $IFS variable is called Internal Field Separator (IFS) that is used to assign the specific delimiter for dividing the string. Word boundaries are identified in bash by $IFS. White space is the default delimiter value for this variable.
In bash, a string can also be divided without using $IFS variable. The 'readarray' command with -d option is used to split the string data. The -d option is applied to define the separator character in the command like $IFS. Moreover, the bash loop is used to print the string in split form.
If you want your file to be split based on the number of lines in each chunk rather than the number of bytes, you can use the -l (lines) option. In this example, each file will have 1,000 lines except, of course, for the last one which may have fewer lines.
s='foo bar baz' a=( $s ) echo ${a[0]} echo ${a[1]} ... If you want a specific word from the line, awk might be useful, e.g.
$ echo $LINE | awk '{print $2}' Prints the second whitespace separated word in $LINE. You can also split on other characters, e.g.
$ echo "5:6:7" | awk -F: '{print $2}' 6
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