Linux command cut, split, paste

cut extracts text and outputs

-D Specify delimiter
-C in Characters
The part of the-F partition after D

Example:
1-d and-F use
Remove to: As delimiter, part 2nd
[Email protected] tmp]# echo ni:hao|cut-d ":"-f2
Hao

2-c use
Take a 2nd character
[Email protected] tmp]# echo ni:hao|cut-c 2
I
Take 2 to 6 characters
[Email protected] tmp]# echo ni:hao|cut-c 2-6
I:hao
Takes a character before the 5th character and a character after the 5th character
[Email protected] tmp]# echo ni:hao|cut-c-5
Ni:ha
[Email protected] tmp]# echo ni:hao|cut-c 5-
Ao
The above characters or fields can be

Remove the 2nd and 5th characters
[Email protected] tmp]# echo ni:hao|cut-c 2,5
Ia

Split split file

-b Specifies the size after splitting
-l Specifies the number of rows after splitting
-a specifies the suffix length, which defaults to 2 bits
-D uses a numeric suffix, which is the letter suffix by default, starting with a

Example:

1-b use (followed by K, M or K, M, G)
10M size split per file Maillog
[Email protected] tmp]# split-b 10m maillog
[Email protected] tmp]# LL-H|TAC
-rw-r--r--1 root root 8.1M June 09:18 Xac
-rw-r--r--1 root root 10M June 09:18 Xab
-rw-r--r--1 root root 10M June 09:18 Xaa

2 in 30 behavior units, split the passwd file, the split file begins with new
[Email protected] tmp]# split-l passwd New
[Email protected] tmp]# LS-LTR|TAC
-rw-r--r--1 root root 1370 June 09:26 Newaa
-rw-r--r--1 root root 1501 June 09:26 Newab
-rw-r--r--1 root root 1513 June 09:26 NEWAC
-rw-r--r--1 root root 1493 June 09:26 Newad
-rw-r--r--1 root root 1097 June 09:26 Newae

3 split the passwd in 50 rows, the file begins with a PA and is suffixed with a 3-digit number
[Email protected] tmp]# split-l 50-da3 passwd pa
[Email protected] tmp]# LL-RT|TAC
-rw-r--r--1 root root 2363 June 09:32 pa000
-rw-r--r--1 root root 2542 June 09:32 pa001
-rw-r--r--1 root root 2069 June 09:32 pa002

Paste Merging Files
-d Specifies the merged delimiter
-S consumes one row per file

Example:
1-d Example
[email protected] tmp]# cat paste1 Paste2
A
B
C
1
2
3
Simple merge
[email protected] tmp]# paste paste1 paste2
A 1
B 2
C 3

Use-D to specify: to separate the compliant and
[Email protected] tmp]# paste-d: paste1 paste2
A:1
B:2
C:3

-S use (after merging, each file occupies one line)
[Email protected] tmp]# paste-s paste1 paste2
A b C
1 2 3

Linux command cut, split, paste