jfgiraud / rearrange

Reorder columns like cut using the order specified argument list. Positive, negative and range indexes are available.

Description

rearr is a small utility to rearrange sections in each line of files.

It can remove and duplicate sections and also change the order of sections.

Installation

The destination directory will contain 3 sub-directories: bin, share and man.

Using git repo.

$ git clone https://github.com/jfgiraud/rearrange.git
$ cd rearrange
$ sudo make install DESTDIR=/usr/local

Using latest tarball release.

$ curl -s -L https://api.github.com/repos/jfgiraud/rearrange/releases/latest | grep browser_download_url | cut -d':' -f2- | tr -d ' ",' | xargs wget -O rearrange.tgz
$ sudo tar zxvf rearrange.tgz -C /usr/local

Usage

Use man.

$ man rearr

Use option.

$ rearr -h

Examples

Display fields 4, 1 to 3 and the 2 lasts of /etc/passwd changing the output separator to ;..

$ rearr -f4,1:3,-2: -d: -o';' /etc/passwd | head
0;root;x;0;/root;/bin/bash
1;daemon;x;1;/usr/sbin;/usr/sbin/nologin
2;bin;x;2;/bin;/usr/sbin/nologin
3;sys;x;3;/dev;/usr/sbin/nologin
65534;sync;x;4;/bin;/bin/sync
60;games;x;5;/usr/games;/usr/sbin/nologin
12;man;x;6;/var/cache/man;/usr/sbin/nologin
7;lp;x;7;/var/spool/lpd;/usr/sbin/nologin
8;mail;x;8;/var/mail;/usr/sbin/nologin
9;news;x;9;/var/spool/news;/usr/sbin/nologin

Display fields 1 to last (step by 2)..

$ head /etc/passwd | rearr -d':' -f 1::2
root:0:root:/bin/bash
daemon:1:daemon:/usr/sbin/nologin
bin:2:bin:/usr/sbin/nologin
sys:3:sys:/usr/sbin/nologin
sync:4:sync:/bin/sync
games:5:games:/usr/sbin/nologin
man:6:man:/usr/sbin/nologin
lp:7:lp:/usr/sbin/nologin
mail:8:mail:/usr/sbin/nologin
news:9:news:/usr/sbin/nologin

Reverse columns..

$ head /etc/passwd | rearr -d':' -f -1:1:-1
/bin/bash:/root:root:0:0:x:root
/usr/sbin/nologin:/usr/sbin:daemon:1:1:x:daemon
/usr/sbin/nologin:/bin:bin:2:2:x:bin
/usr/sbin/nologin:/dev:sys:3:3:x:sys
/bin/sync:/bin:sync:65534:4:x:sync
/usr/sbin/nologin:/usr/games:games:60:5:x:games
/usr/sbin/nologin:/var/cache/man:man:12:6:x:man
/usr/sbin/nologin:/var/spool/lpd:lp:7:7:x:lp
/usr/sbin/nologin:/var/mail:mail:8:8:x:mail
/usr/sbin/nologin:/var/spool/news:news:9:9:x:news