All Questions
Tagged with shell-script grep
482 questions
5
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3
answers
509
views
Can grep output the complete input verbatim only if there was a match?
I'm processing input data in a pipeline consisting of several programs. In one step of the pipeline, I want to know if there are certain lines in the input, but I want to output everything as-is ...
- 1,246
-2
votes
2
answers
123
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Counting unique IP addresses per hour in existing log files
I am trying to determine the number of unique web visitors to my website each hour. The log files (access*.log) contain many lines looking similar to this.
192.168.211.85 - - [29/Sep/2024:10:17:02 -...
- 305
1
vote
0
answers
159
views
get unique lines from a file [closed]
For reference, this is a follow-up on @EdMorton's answer to my previous question: make master/slave ip in different subnet
I have a file have duplicates on both first column and the second column,just ...
- 59
1
vote
3
answers
162
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make master/slave ip in different subnet
For reference, this is a follow-up and variation on group ip address to different subnet with shell
We have two strings (named master/slave), the two strings are composed with IPS spread in three ...
- 59
3
votes
1
answer
302
views
grep return "No such file or directory" after command substitution
I'm trying to use grep in a bash script and assign the result to a variable:
RESUlT=$(grep -R -I --exclude-dir=addons "^[^#]*print(" )
But it returns
bash: Map/Places/place.gd:: No such ...
- 33
-2
votes
3
answers
420
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Bash script: echo output of variable and write to file
I am trying to write a script which will check to see if the contents of a file match a certain value and if so, overwrite it with contents of another file.
Example:
file1 =
A, B, C, D
1, 2, 3, 4
...
-1
votes
1
answer
145
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zgrep command not working correctly on command substitution [duplicate]
I am preparing a script
that will try to detect two texts on the same line.
This pattern is present in my application log files,
which then further used to identify which file contains the pattern.
...
1
vote
1
answer
103
views
What does "/$" mean to "grep"?
I'm using these two codes below.
ls -lap . | grep -v "/$"
ls -lap . | grep -v "/"
These two give me different outputs in some cases. What does $ mean in that context?
- 21
0
votes
2
answers
343
views
i3 command to toggle picom that greps ps for "picom" works when it should fail, as "picom" is in the command and shows up in "ps" output
I have this line in my i3 config:
bindsym $Super+Shift+F10 exec --no-startup-id ps aux | grep -q '[p]icom' && killall picom || picom
It runs a shell command (everything after --no-startup-id ...
- 106
0
votes
2
answers
159
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Unable to grep foreign language in shell script
I am a newbie in shell scripting, I have a text which contain text in following format:-
"some foreign language",'corresponding ID to text'
for example:-
"Назад",...
- 520
0
votes
2
answers
431
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How to grep for the value of a variable inside a shell script?
I have 2 files:
a file full of values I want to look for
my source text file
I wrote a short shell command to loop thru my list of values and grep against my source file. If it doesn't find the ...
- 529
0
votes
2
answers
353
views
Passing multiple includes that contain spaces to grep
I'm creating PowerShell and Bash scripts to standardise our usage of the former's Get-ChildItem and Select-String and the latter's grep.
As part of the Bash script, I'm taking command-line arguments, ...
- 103
1
vote
2
answers
350
views
Remove exact line from file if present, leave the rest of lines; error-handling - how to go about it
I am not exactly sure how text processing should be done in a good way, so let me ask.
I have this file: ~/.config/mpv/input.conf containing possibly other options as well as v disable.
If I want to ...
- 30.7k
0
votes
1
answer
386
views
How to assign output of Grep in a Variable
I am trying to assign the output of grep in a variable .
The below command provide me the correct output in a script
str="DWMessStage-20230609-083501.xml__a6e27c1.4a73a37b.13.1889d3efa14.N7f9d....
0
votes
0
answers
207
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Batch extract pdf from emails on Debian in bash
What I'm trying to achieve: I am trying to send pdf documents to my Remarkable 2 tablet via email.
How I'm trying to do it:
I set up rmfakecloud: a software that runs on your server and emulates the ...
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