reorder [options] --fields=list [file] | |
-h|--help | print short help and exit |
-H|--Help | print full documentation and exit |
-V|--version | print version and exit |
-f|--fields | ordered list of comma-separated field(range)s |
-s|--squeeze | squeeze off trailing empty fields |
-t|--tab | column separator; default is the tab character |
-u|--undefined | contents for undefined fields; default: empty |
-i|--inplace | change file inplace |
By default, columns are separated by tabs, unless a different separator is specified with the --tab option. Columns are counted starting at 1. Ranges of columns may be specified with hyphens.
Unavailable columns are replaced with empty ones or, if the --undefined option is used, with that options' argument. So if you specify the fifth column in a 2-column file, you end up with a 5-column file.
Output is written to standard output, unless the the --inplace option is used, which causes the output to be written to the original file.
reorder --fields=1,3,2 file
Reverse the three columns of a space-separated file:
reorder -t' ' -f3-1 file
Move columns 7 through 9 after the last column in an 11-column tab-separated file:
reorder -f1-6,10,11,7-9 file
Put two empty columns between the columns of a 2-column file:
reorder -f1,3,4,2 file
Insert an empty column before the first in a file with a variable number of columns, with a maximum of 12, say:
reorder -f20,1-12 file
This will result in a 13-column file with trailing empty fields!
The same, but replace undefined fields with '-' and remove trailing empty fields, and replace the original file with the output:
reorder -siu- -f20,1-12 file
synopsis: | handle_options "$@" |
description: | handle the options. |
globals used: | Myname Version |
globals set: | args |