sed.md

sed

NAME
     sed -- stream editor

SYNOPSIS
     sed [-Ealn] command [file ...]
     sed [-Ealn] [-e command] [-f command_file] [-i extension] [file ...]

DESCRIPTION
     The sed utility reads the specified files, or the standard input if no
     files are specified, modifying the input as specified by a list of com-
     mands.  The input is then written to the standard output.

Remove leading and trailing quotes ( "Example", )

printf '%s' ' "The test case", ' | sed 's/^[\s \t     ]*//g; s/\"//g; s/[",]//g'

printf '%s' '    "The test case", ' | sed 's/^[\s \t     ]*//g; s/\"//g; s/[",]//g'

printf '%s' '                         "The test case", ' | sed 's/^[\s \t     ]*//g; s/\"//g; s/[",]//g'