search text on the terminal output

Question

I am running an application with command $ grails run-app which prints log in terminal like below.

search_text_terminal

What I want is search a particular text (say user authorities) in this log so that I can verify further. One way using Logging Apis to write in text file but I want to search it in a terminal at the moment.

I found similar question at how to make search a text on the terminal directly which suggests screen command, but I have no idea how screen works in this case. I tried $ screen grails run-app but couldn't move ahead.

I can see screen lists with

prayag@prayag:~/zlab/nioc2egdelonk$ screen -list
There is a screen on:
    8076.pts-2.prayag   (10/06/2013 12:13:25 PM)    (Attached)
1 Socket in /var/run/screen/S-prayag.

score 36 · Answer 1 · edited Oct 04 '21 at 08:19

36

If you use Konsole (KDE terminal emulator), you can use Ctrl + Shift + F. This might work also in other (Linux) terminal emulators; it has been confirmed to work in GNOME Terminal, the Xfce terminal, Alacritty, and Terminator.

edited Oct 04 '21 at 08:19

Stephen Kitt

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answered Apr 19 '17 at 15:32

Augustin

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@Augustin where did you find such shortcut? – user1868607 Apr 26 '21 at 12:55
@Rodrigo: See the Konsole Handbook: https://docs.kde.org/stable5/en/konsole/konsole/commandreference.html#edit-menu. Alternatively, if you have Konsole on your machine, have a look in the Edit menu – the keyboard shortcut should be listed next to the Find... entry. – Augustin Apr 28 '21 at 09:46
Working for Mobaxterm[Windows] ... Thanks mate – infiniteLearner Nov 16 '21 at 12:12

score 31 · Accepted Answer · edited Aug 10 '17 at 14:48

31

Ctrl+a (default screen command prefix), [ (enter copy mode) followed by ?SEARCH_TEXT seems to work. Press n to go to the next occurrence. From there, you can copy words, lines, regions, etc to dump into files or paste later on (with Ctrl+a, ]).

enter image description here

edited Aug 10 '17 at 14:48

Stéphane Chazelas

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answered Oct 06 '13 at 07:14

prayagupa

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I cannot do this. So you need to press 3 keys at once? ctrl, a, [? – Capaj Mar 17 '15 at 10:13
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use `shift+ctrl+f` – Ja8zyjits Jun 03 '16 at 13:25
@Ja8zyjits where did you find such shortcut? – user1868607 Apr 26 '21 at 12:55
@Rodrigo check [terminator](https://terminator-gtk3.readthedocs.io/en/latest/gettingstarted.html#search-the-buffer). I should have made this an answer. Oh, i didnt have enough karma to post answer back then. – Ja8zyjits Apr 26 '21 at 14:55
Does this not only work with the `screen` utility? – vpp Dec 06 '22 at 17:39
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This command worked on `Terminator` – Kevin Patel Jun 26 '23 at 19:02

score 13 · Answer 3 · edited Apr 19 '17 at 16:48

13

You can use grep after the grails command: grails run-app | grep "user authorities". However, you will have to re-run your command.

edited Apr 19 '17 at 16:48

Augustin

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answered Jun 19 '14 at 09:17

Timo

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This answer shouldn't be voted down, its absolutely correct. – amrx Jun 01 '15 at 02:22
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While correct, it's more useful to have something one can do *after* the output has already been printed. – Ludwik Sep 27 '16 at 13:13
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@Baron I'm even pretty sure that the asker meant to imply that the command is already running, so this doesn't answer the question. – Nobody Jan 05 '18 at 21:44

score 6 · Answer 4 · answered Apr 01 '16 at 16:43

Redirect output of your command to vim-editor: grails run-app | vim -

Several tips for search using Vim:

type / then enter your search string user authorities
type :set hlsearch to highlight search results
type n to search forward or Shift+n to search backward
remember you're in editor now, so if you did some changes accidentally you can revert, just press ESC once to exit edit-mode, then press u to undo one edit
type :q! to exit Vim and discard your search results
you can do whatever you want :-D http://vim.wikia.com/wiki/Vim_Tips_Wiki

score 3 · Answer 5 · edited Aug 01 '17 at 13:06

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Redirect the output to pipe and send it to a grep command:

grails run-app | grep user authorities

edited Aug 01 '17 at 13:06

Stephen Rauch

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answered Aug 01 '17 at 12:37

Soniya

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score 1 · Answer 6 · edited Dec 06 '22 at 14:50

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Use Shift+Ctrl+f to search in terminal.

Got this from the comment above by @Ja8zyjits.

This worked for me.

edited Dec 06 '22 at 14:50

Fco Javier Balón

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answered Dec 05 '22 at 21:10

vpp

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search text on the terminal output

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