All Questions
39 questions
-1
votes
2
answers
67
views
set output into variable from grep from input variable
whats wrong with this bash script:
acme2=$(dig txt @$1 _acme-challenge.$1.de)
acme3=$(echo $acme2 | grep "^_acme") ...
- 1
0
votes
2
answers
44
views
Capture and print on the exact match from a file
I am trying to use grep to match only a specific part of a row in a file.
The file is a huge csv file with some columns containing json with commas so it is hard to figure out which column what I am ...
- 161
0
votes
1
answer
100
views
bash script, grep, arguments in VAR?
I have a list of file names where I wish to remove items containing different letters or strings.
If I run
cat <file> | grep -Ev 'P1|P2'
in a bash shell it works.
but in a script
#!/bin/bash
......
- 195
1
vote
2
answers
332
views
Finding a string in a txt of house addresses with number ranges by passing in exact number and street names
Context
I'm a postal worker (mail sorter) and am trying to write a bash script which allows me to input an exact street address and first couple letters of a street name, and have it return the ...
- 23
0
votes
1
answer
103
views
Error with sed replacing string
Hello I need to replace a string but i receive error using string 'return false;'
#!bin/bash
oldstring='{alert("bash")}'
newstring='{return false;}'
grep -rl $oldstring /home/commons.bundle....
- 53
1
vote
3
answers
2k
views
How do I grep from one character or pattern to another?
I want to grep a string from a given character or pattern until another given character or pattern instead of the entire line.
For example:
$ > echo "The brown fox jumps over the lazy dog" | grep ...
- 197
2
votes
1
answer
759
views
grep -v without output?
I have an issue with a script.
Here is the code (with line numbers):
1 function usage
2 {
3 echo "usage: $0 filename ..."
4 echo "ERROR: $1"
5 }
6
7 if [ $# -gt 0 ]
8 then name=(...
- 123
0
votes
2
answers
248
views
Bash scripting loop concatenate pipes / redirections based from names variable
I have a command that produces a number of output lines that I later grep searching for.
Based on a past answer I know I can use a single long command and do all my filters concurrently:
https://...
3
votes
2
answers
1k
views
grep files with pattern A but exclude files with pattern B
I want to grep files which include pattern A (iwant) but I want to exclude files which contain pattern B (idontwant).
Example:
read -p "...what are you looking for: " iwant
read -p "...what should ...
- 61
7
votes
1
answer
4k
views
Convert json file to a "key-path" with the resulting value at the end of each "key-path"
I have a large and relatively complex json configuration file that I want to search for keys and/or values using simple tools like "grep". When I 'grep' the file I would like to have in the output ...
0
votes
0
answers
340
views
Building a script to find a file if exists and grep for a string
Following K7AAY and 0xSheepdog advice I'll rephrase.
I need to create a bash script where it will grep a log file that is generated daily when a file is sent in a range of time of the day.
The ...
- 63
0
votes
3
answers
2k
views
Syntax error near unexpected token ` | '
I keep getting this error
line 3: Syntax error near unexpected token `|'
This is the script at the moment:
for filename in $(ls $1) | grep -v ".old"
do
mv "$1/$filename" "$1/$filename.old"
done
...
0
votes
1
answer
2k
views
Bash script to monitor log, match keyword then send commands [duplicate]
#!/bin/bash
sudo tail -fn0 /home/main/time.log |
grep -o --line-buffered 'garage\|garden\|porch' | head -1 |
while read line; do
sudo pkill -f porch.sh &
sudo pkill -f garage.sh &
done
I'...
- 1
4
votes
2
answers
5k
views
wc -c gives me one extra character count
So I made a script that adds users to the system, and I wanted to force the length of the usernames to 8 characters or below.
#!/bin/bash
# Only works if you're root
for ((a=1;a>0;a)); do
if [[ ...
- 543
1
vote
3
answers
3k
views
find a file through particular search in while loop [closed]
Actually it is related to my previous post sorting out directories by searching certain file extension which is still unanswered. There are many options available to solve the problem, but I am ...
- 69