STRING-SUB(1)

NAME
string-sub - extract substrings

SYNOPSIS
string sub [(-s | --start) START] [(-e | --end) END] [(-l | --length) LENGTH]
           [-q | --quiet] [STRING ...]

DESCRIPTION

string sub prints a substring of each string argument. The start/end of the substring can be specified with -s/-e or --start/--end followed by a 1-based index value. Positive index values are relative to the start of the string and negative index values are relative to the end of the string. The default start value is 1. The length of the substring can be specified with -l or --length. If the length or end is not specified, the substring continues to the end of each STRING. Exit status: 0 if at least one substring operation was performed, 1 otherwise. --length is mutually exclusive with --end.

EXAMPLES

            >_ string sub --length 2 abcde
            ab

            >_ string sub -s 2 -l 2 abcde
            bc

            >_ string sub --start=-2 abcde
            de

            >_ string sub --end=3 abcde
            abc

            >_ string sub -e -1 abcde
            abcd

            >_ string sub -s 2 -e -1 abcde
            bcd

            >_ string sub -s -3 -e -2 abcde
            c

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fish-shell developers