I am having a similar issue to that pictorially shown here:
https://unix.stackexchange.com/questions/344502/when-scrolling-through-history-in-cygwin-terminal-window-line-gets-garbled
This is new to me as I have been using Cygwin on a Windows 7
machine for several years without encountering this problem.
(Of course, that Cygwin build was from 5 or 6 years back.)
I just moved to a Windows 10 machine and installed Cygwin from
scratch a couple of days back and ran into the issue.
Using the UP arrow to go up the history list, I have no problem till I
hit a long command (in the case shown below the problematic
command was about 50 characters long). When going one step
further up the history list, the leading characters of the long
command stay on the command line. I cannot backspace/delete
them.
I am using mintty from the standard distribution.
Specific example. I issue a 'history' command to show the
history and then use the UP arrow key to scroll upwards. After 6
Ups, I reach command no. 33 as shown below.
================================
sita 41 $ history
2 vi .bash_profile
3 quit
4 eixt
5 exit
6 histoyr
7 history
8 vi .bash_profile
9 vi .bash_profile
10 exit
11 history
12 cd /usr/share
13 ls
14 cd
15 history
16 exit
17 history
18 history
19 exit
20 sdafasfas
21 history
22 cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
23 history
24 cp /usr/share/vim/vim*/vimrc_example.vim ~/.vimrc
25 history
26 ls
27 cd
28 vi .bash_profile
29 exit
30 history
31 exit
32 cygcheck -s -v -r > cygcheck.out
33 history
34 history
35 ls
36 cd
37 pwd
38 ls
39 history
40 exit
41 history
sita 42 $ history
================================
Now I move up one more step an get
================================
....
....
30 history
31 exit
32 cygcheck -s -v -r > cygcheck.out
33 history
34 history
35 ls
36 cd
37 pwd
38 ls
39 history
40 exit
41 history
sita 42 $ cygcheck -s -v -r > cygcheck.out
================================
which is just what is expected. One more and we get
================================
31 exit
32 cygcheck -s -v -r > cygcheck.out
33 history
34 history
35 ls
36 cd
37 pwd
38 ls
39 history
40 exit
41 history
sita 42 $ cygcheckexit
================================
Command 31 (exit) now has the extra characters
pre-pending the entry on the history list.
Hitting a return here executes the 'exit', though.
This seems to work for other commands. It appears
as though the characters have no effect. But,
they do cause a bit of confusion!
Also I noticed that if I input a really long string for a command, the
characters
that should be in a new line over write the leading characters of the command --
that is, there is no line feed when the text wraps around.
Would greatly appreciate any help in fixing this.
The 'cygcheck' output is attached.
If you need any further information about the
mintty set up, please let me know.
tia.
cygcheck.out
Description: Binary data
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