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Send keys in shell script


 
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# 1  
Send keys in shell script

Hi All,

Consider we have script Linux server . But we don't have permission to edit that file.
When run the script, it opens a file as "/tmp/xxx0000 .txt" with few contents. Most of the time the contents doesn't required to modify and they just save and close (:wq!).
So the script continues and creates "/tmp/xxx000n.txt" file until some n iteration.

How can automatically send ":wq!" key /tmp/xxx0000.txt' file which presents in active window.

Thanks in advance,

Moderator's Comments:
Mod Comment Please do wrap your samples in CODE TAGS and small commands in iCODE TAGS as per forum rules.

Last edited by RavinderSingh13; 02-05-2020 at 08:32 AM..
# 2  
You are using vi / vim in a script?
# 3  
Hi Neo, "vi" option used in that script.
# 4  
Hi
Any open file in "vim" generates a "swap" file. This is of course a band-aid
Code:
ex -rnes +wq /tmp/.xxx0000.txt.swp

--- Post updated at 12:00 ---

So it will be more correct
Code:
ex -rns +wq /tmp/xxx0000.txt


Last edited by nezabudka; 02-07-2020 at 04:33 AM..
This User Gave Thanks to nezabudka For This Post:
# 5  
Thanks nezabudka. Actually a primary script open a text file from vi command. But end user need close the file manually, than only the primary script resumes execute the next flows. Above command helps to save the file even if it open. Is there a way to send ( :wq ) in current active window ?
# 6  
Quote:
Originally Posted by k_manimuthu
Thanks nezabudka. Actually a primary script open a text file from vi command. But end user need close the file manually, than only the primary script resumes execute the next flows. Above command helps to save the file even if it open. Is there a way to send ( :wq ) in current active window ?
the command given above writes the open buffer to a disk. So there is no need for an open window to execute command :w.
Do you need to exit vim?

--- Post updated at 16:53 ---

Maybe the solution is if you run a line of code in a script in the background?
Code:
...
vim file &
...

And connect to it when necessary
Code:
reptyr $(pidof vim) #install reptyr

# 7  
Real question being what is the purpose of running :wq inside script ?

You wrote
Quote:
.....
Above command helps to save the file even if it open.
.....
Can you elaborate on this ?
How does :wq make things work better or worse for file in question ?

There are other tools on your disposal such as lsof or fuser to see if the file is opened.

You can also use screen or tmux to achieve similar hackery, sending commands into sessions.
Check out -X options and examples online.

But try to correct the workflow first and use other tools not editors in scripts in such way...
Can you show the code, perhaps a better way can be devised to make entire processing.

Hope that helps.
Regards
Peasant.

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