All Questions
298
questions
0
votes
1
answer
25
views
Dealing with whitespaces in file names after git grep -l
I'm trying to run the script below and I'm struggling with pathspec error when the filename has whitespaces.
I have already read some other posts around here, but since I am not an expert I was not ...
- 103
0
votes
0
answers
27
views
Grep’s result coloring, and right-to-left scripts
I have a text file with a single line that contains the single Yiddish word azoy, in Hebrew script: אַזױ. Then I grep for occurrences of the oy character, ױ.
(This is highly simplified of course, in ...
- 11
1
vote
0
answers
21
views
How to calculate GUI used memory widget value?
OS: Kubuntu 22.04.4 LTS x86_64
to display above:
neofetch --stdout |grep 'OS:'
GUI = Graphical User Interface
GUI used memory = see widget image below.
.
2nd method to display used memeory = 2211 MB =...
- 367
0
votes
1
answer
46
views
no-ignore-case in grep command
In man page of grep --no-ignore-case matching control has the following description:
Do not ignore case distinctions in patterns and input data. This is the default. This option is useful for ...
1
vote
0
answers
57
views
How to command pv (Pipe Viewer) to work with diff?
using:
OS: Kubuntu 22.04.3 LTS x86_64
diff (GNU diffutils) 3.8 Copyright (C) 2021 Free Software Foundation, Inc.
pv 1.8.0 Copyright 2023 Andrew Wood, pv = Pipe Viewer
commands to display above:
...
- 367
2
votes
1
answer
297
views
How to Print, when columns have spaces - awk?
Problem:
desired columns have text with spaces SAMSUNG MZNLN128HCGR-000H1
undesired columns have text with spaces, see VENDOR = M.2 SSD
awk only printing the first word.
awk not printing the column ...
- 367
3
votes
1
answer
117
views
Why can I ssh and return a result faster than Linux can with a bundled command?
I'm writing a short bash script that involves logging into roughly 100 nodes and counting the number of processes running in top with my username, and I'm trying to combine the ssh-related processes ...
- 31
1
vote
0
answers
207
views
How to use diff for files names, not file content, and echo "differences!"
Background:
While comparing 2 directories,
command1, from the internet:
diff <(find "$DIR1" -printf '%P\n' | sort) <(find "$DIR2" -printf '%P\n' | sort) | grep '^[<>]'
...
- 367
4
votes
2
answers
130
views
Why is `grep "^ *[^<]" <somefile.xml` giving unexpected results
Say I have a file containing some xml like so:
<headtag>
<firsttag>a string</firsttag>
<secondtag>a string</secondtag>
<subleveltag>
a line with no tag
&...
- 151
-1
votes
1
answer
165
views
write a efficient for loop in bash for multiple files (.PDB files)
I have problem with this script:
#!/bin/bash
for filename in /home/hb/pg/ensemble/pdbs/P24941/raw_pdb/*.pdb; do
grep COMPND $filename | grep "CHAIN:" -B 1 | sed 's/COMPND//g' | sed 's/...
- 9
0
votes
1
answer
2k
views
Using grep to search for files with a specific extension [duplicate]
I'm trying to recursively look for C Sharp files containing specific text using a bash prompt on Windows Subsystem for Linux.
If I type grep -l -i -r "public virtual List<" /mnt/c/mycode/*...
- 1,273
4
votes
3
answers
2k
views
How to check if a command is running currently? [duplicate]
I want to check if a command is running with the following if clause, but it's always true, whether command actually is running or not:
if [ $"(ps aux | grep curl)" ]; then echo is; else ...
- 423
0
votes
2
answers
583
views
How to combine tee, sed and grep?
I have a command after which I place | tee >(sed $'s/\033[[][^A-Za-z]*[A-Za-z]//g' >> ~user/filepath/file.txt) The tee is redirected to sed $'s/\033[[][^A-Za-z]*[A-Za-z]//g' which removes the ...
- 11
1
vote
1
answer
51
views
How do I correctly execute 'vim $(grep -rli pattern | sed 's/\(.*\)/"&"/')' in bash?
I am trying to edit files that contain text matching a regular expression with vim and use the following command in bash to do that:
vim $(grep -rli pattern | sed 's/\(.*\)/"&"/')
I ...
- 2,374
4
votes
3
answers
2k
views
Copying a path in the terminal with the keyboard
I often find that when using the command line, I need to copy a path that appears in the output of the last command. For example I might use find . | grep like this:
[user@localhost /tmp]$ find . | ...
- 163
5
votes
1
answer
2k
views
How to print and pipe log file at the same time?
I use this to check the log lines of a log file until the occurrence of a specific event (taken from this answer to Monitoring a file until a string is found):
(tail -f -n 0 test.log &) | grep -q '...
- 588
0
votes
1
answer
1k
views
How do I change the order in which grep looks for pattern in files by filename
I have a directory with a bunch of files with numerical filenames like this:
1 - filename
2 - filename
3 - filename
etc...
They don't have leading zeroes, so if I do something like
grep -oha "...
- 1
1
vote
1
answer
270
views
what is the difference between 'grep -n ' \.*' test.txt' and grep -n '\.*' test.txt
When I run grep -n ' \.*' test.txt , I get:
1:Hello! This is a Unix \ Linux test text file.
2:It is being used to check multiple grep commands.
3:It is very useful.
4:.Below are some tabular ...
- 11
0
votes
1
answer
431
views
Capture process output with sed, capture block of text and then filter inside it
There is some stdout that I would like to filter with sed but I don't know how. The stdout example would be:
.
.
.
Model a. # This should be captured
.
.
.
Metrics results: # This ...
- 103
0
votes
1
answer
783
views
Displaying users and their home directory but NOT WITH awk
I have seen similar questions and I actually found the solution using awk command, but I'm not allowed to use it in my homework.
so I want to know if there is another way of displaying all the users ...
0
votes
2
answers
701
views
remove duplicated lines taking into account only two columns
I have a file that has some duplicated lines if I take into account only the two first columns.
For example
2 2 7 7
1 1 3 3
1 1 4 4
1 1 5 5
1 1 6 6
3 3 7 7
4 4 9 9
4 4 2 2
In this example, I have ...
- 103
0
votes
0
answers
323
views
macOS terminal: show filename with colors when using grep
When using Ubuntu I get these colors when using grep (grep -r "MSP" .):
I want the same result when using macOS Monterey. I tried to add
export GREP_OPTIONS='--color=auto'
to my bash ...
- 101
0
votes
2
answers
495
views
How can I see the lines where matching patterns occur in grep for multiple patterns in multiple directories
Thanks for all the input and effort, I've been able to find a solution to my "problem".
find . -type f -name '*.csv' -print0 | xargs -r0 grep -rn string1 | grep string2 | grep string3
...
- 1
0
votes
1
answer
286
views
Piping PCRE grep into sed
I wanna sed this file, but the BRE in sed is not working as well as I hope.
What I have now is basically just :
$ cat Dungeon | grep -P -o '<\/.*?>'
My question is how do I sed this? I want to ...
1
vote
1
answer
1k
views
Keep Color output with grep at systemctl status
I'm trying to get the original color of the output of this command with grep:
sudo systemctl status telegraf | grep -e ● -e Active
Output of command
with this command the output is red, but i want it ...
- 13
0
votes
2
answers
123
views
Find files in git that have entry in .editorconfig
I want to find all of the files in git that have some extensions. The list of extensions is generated from my .editorconfig file.
Say I have a list of file extensions such as:
.css
.html
.java
.js
(...
0
votes
3
answers
2k
views
How to execute kill `ps -ef | grep 1.sh` command as SUDO SU from batch file through Putty terminal to kill ALL process, with given name not only 1st?
I try use this command:
start "" putty.exe -ssh -load NameOfSessionInPutty -m "C:\Program Files\PuTTY\MYCOMMAND.txt" -t
MYCOMMAND.txt contains:
sudo su - -c "kill `ps -ef | ...
- 15
0
votes
1
answer
2k
views
Odd behavior with grep -q in a bash script
I'm trying to write a small bash script that will check if each element of a sequence of numbers is in a given file, and print the ones that aren't.
find_missing.sh:
#!/bin/bash
for num in {1..5}; do
...
- 103
0
votes
1
answer
78
views
Weird grep behavior with CJK characters? (bash)
grep fails to match certain strings with CJK characters.
For example.
Create a text file with content below:
==ShellType.サモナ\u30FC==
Use grep.
>> grep "ShellType.サモナ\u30FC" ...
- 236
0
votes
2
answers
84
views
Grep Sed with bash
I'm trying to achieve the following using bash and sed where the file containing below strings
qa2.test.m.xyz.com
554
1723
21
qa88.test.nj.xyz.com
1723
554
21
443
80
qa2.lite.xyz.com
554
1723
21
...
- 75
0
votes
1
answer
346
views
grep for lines in shell script, send to xargs with $1 set
I have a shell script (I use GNU bash 4.4.20 on Ubuntu 18.04) with a list of commands I often run, e.g.:
sudo program1 $1 foo arg1
sudo program2 $1 foo arg2
sudo program1 $1 bar arg3
sudo program2 $1 ...
- 583
1
vote
1
answer
6k
views
Grep with option -P in busybox
I want to run a grep command with option -P in a BusyBox v1.31.1 () multi-call binary inside a kubernetes pod with the image curlimages/curl:7.75.0
curl -s -X GET "https://api.cloudflare.com/...
- 273
1
vote
2
answers
5k
views
Extract key from key-value pair
I have a file looking like that.
mke_version = "3.3.7"
msr_version = "2.8.5"
mcr_version = "19.03.14"
I want to print from file only key ...
- 33
1
vote
0
answers
143
views
bash grep not finding all instances of gene
I have a file1 which has gene names:
Appl
Bsg
mt:CoI
mt:CoII
mt:CoIII
I have file2 which has all matches of those gene names in the genome:
"FBgn0000108"; "Appl";
"...
- 11
0
votes
1
answer
577
views
Find number of files that contain certain String
I have a directory containing a vast amount of xml files. I would now like to find the number of files (and optionally the names of said files) that contain a certain string. XML tags do not really ...
- 103
1
vote
1
answer
69
views
Would you expect different outputs from these two command chains?
I'm working on a project for a Linux class, we're writing a script to pull stats from a log file. This specific command chain is to get the number of users running MSIE 6.0. I'm wondering why I'm ...
0
votes
1
answer
1k
views
Grep with a variable in a script
I have this code that returns the number of files in a directory with the name wordpress.*.tar.gz
This code works NUM_BACKUPS="$(ls -l ${POOL_PATH}/${BACKUP_PATH} | grep -c '\wordpress.*.tar.gz$')...
0
votes
0
answers
120
views
Filter whole line from output in command line
I'm trying to find a bottleneck caused by some MySQL query, which oftentimes overloads the web server. Then I found this useful command:
mysqladmin -u myusername -p -i 1 processlist
which every ...
- 101
0
votes
1
answer
1k
views
grep for same occurrence more than once
Is it possible to grep or awk for more than 1 occurrence of the same string from a file?
awk '/$STRING|$STRING/' file
grep -e $STRING -e $STRING file
I tried other options but still not able to get ...
0
votes
0
answers
157
views
Select part of PATH variable in bash_profile and insert it into another file
Fairly new to anything Linux. I have a path variable in my users' bash profile that we'd like to utilize from some of our scripts on the server.
The part of the script that I'm changing is as follows
...
- 1
1
vote
2
answers
647
views
recursive grep does not list matches from some files
I am using GNU grep 3.4 to find scripts that contain a certain pattern. For this, I call grep recursively like so
grep -rin . -e "pattern"
The pattern is just a word, no regular expression....
- 162
1
vote
1
answer
641
views
AWK/SED/GREP - print M lines after the Nth occurrence of a match
I am looking to display M lines after the Nth occurrence of a match. Actually I need to do this in order to split a file containing Nth <regex> always followed by M lines into Nth different ...
- 21
6
votes
1
answer
2k
views
Inverse grep using a pattern file doesn't show non-matches
I have two nearly identical files, "foo" and "bar".
Each file has thousands of lines, one number each line.
If I sort and then diff both files, this is the result:
$ diff foo bar
...
- 7,004
0
votes
1
answer
655
views
'grep' command not highlighting User input word in the Search result
I am trying to write shell script as below to search user inputted word and highlight the word in the search result -
User input:
echo -n -e "What you wanna search:"
read userinput
Save the ...
3
votes
2
answers
1k
views
how do I write a line number divisible by 3 in bash from an input file?
Create a shell script which prints the line contents when the line number is divisible by 3 from an input file. Assume the first line is line 1. At the end of the script, if the total number of lines ...
- 31
0
votes
1
answer
390
views
grep AND OR operators combined with IP addresses
I'm trying to find a way of streamlining my grep searches and be more granualar.
An example of what I want to achieve: a netstat output searching for a particular IP AND the word established OR ...
- 3
1
vote
1
answer
83
views
Display dirs tree based on a file content
$ find ./ | tac
./dir1/file -> "abc"
./dir1
./dir2/file - > "abc"
./dir2
./dir3/file -> "xyz"
./dir3/dir3_1/file - > "abc"
./dir3/dir3_1
./dir3
or
$ tree
├── dir1
│ └── file -> "...
0
votes
1
answer
635
views
Troubleshooting grep not returning whole lines during search?
I have two tab delimited txt files- FileA has 30,000 lines and 10 columns. FileB has 600 lines and 1 column. My goal is to search the 30,000 lines of FileA using the search terms in FileB and output ...
0
votes
2
answers
418
views
Why is this grep skipped after wget?
I'm trying to grep a string from the HTML output from wget in order to concatenate a URL together. Using the suggestions here I tried
wget -O - https://www.printable-puzzles.com/download.php?p=cw2&...
- 1
0
votes
1
answer
57
views
Grepping specific lines with the same pattern
I am currently writing a bash script to grep out certain lines as shown in bold. However when I do a grep 'number', all the irrelevant lines will appear as well.
Is there a way to just grep out the ...
