Questions tagged [egrep]
22 questions
4
votes
4 answers
What are the advantages, if any of grep over egrep
I'm just learning about the grep family of programs, and it seems to me that egrep is strictly superior to grep - it can do everything that grep can do, but more. Am I wrong? Why not just use egrep every time?
EDIT: I know that grep -E is the same…
MYV
- 1,243
3
votes
1 answer
When piped with ls, grep in solaris is not working
I am using the below command in solaris
ls -l | grep '*PROC*'
But it is not working. I have many files that contain "PROC" in their name like "XREF_PROC.complete" but when I use the above command its not showing any output. When I use ls *PROC* its…
sandywho
- 33
1
vote
1 answer
Need to match running processes in egrep
I need to find all running processes whose owner is neither root nor Student. I know how to not get running processes whose owner is neither root nor Student by type
ps aux | egrep '^[^(root)|(Student)]'
I am struggling with get all running…
Rikki
- 11
- 2
1
vote
0 answers
Unable to match start-of-line using egrep
I've the following command that works good on my macOS;
git branch | egrep -v --regex "$REGEX_PATTERN" | xargs git branch -D
where the REGEX_PATTERN=(develop|master|release|).
When I change my regex into REGEX_PATTERN=^(develop|master|release|) to…
stdout
- 111
1
vote
2 answers
Remove specific string from file
output.txt
1.1.1.1:22/ does not support password authentication. [ERROR] target ssh://2.2.2.2:22/ does not support password authentication. [ERROR] target ssh://3.3.3.3
i want to remove string :22/ does not support password authentication. [ERROR]…
beginner
- 13
1
vote
1 answer
find -exec grep {} \; egrep -v string \; # the command chain brakes
I'm playing with find command to see how it behaves and I'm a bit lost.
First bit is fine :
find . -maxdepth 1 -exec grep -l abc {} \;
grep: .: Is a directory
./file2.pdf
./file1
Then I try to exclude the .pdf file by chaining another egrep…
Tomas.R
- 195
0
votes
0 answers
how to grep exact pattern
I’ve tried several grep / egrep ideas with different options but none worked here. I’m trying to grep exact match of the pattern I’m looking in a log.
For example I want only a pattern “ERROR” to get grepped, rather than a word “ERROR123.”
I have…
rkperumala
- 19
0
votes
3 answers
egrep for time in H:MM:SS format
Working on the file an need to grep the line with a time stamp in the H:MM:SS format.
I tried the following egrep '[0-9]:[0-9]:[0-9]'. Didn't work for me. What am i doing wrong in regex?
Serg12
- 101
- 1
0
votes
1 answer
Restrict grepping to non-comment lines
I need to find in Perl source files lines containing bin/exim|SendEmail|Unformatted except of comment lines (lines starting with # with possible whitespace before).
I know how to do it with a pipeline of several invocations of FreeBSD grep command.…
porton
- 323
0
votes
1 answer
grep next exact match in double quotes
I am trying to grep string and next string which is marked in double quotes.
Its a .xml file and the content would be as below:
user2692634
- 29
- 6
0
votes
1 answer
How do I use Ubuntu 'regextype egrep -regex' negative lookbehind
Assume I have the following two files:
fileA.pdf
pp_1234_fileB.pdf
If I am to run the following in PowerShell, the file, fileA.pdf is returned.
get-childitem -file -recurse | where-object {$_.Name -match "^(?!pp_[0-9]{4}_).*\.pdf"}
but if I try to…
Brian
- 1,085
0
votes
1 answer
How can I combine "Search for multiple strings (patterns)" with "Print rows after a hit" in a string/search and output a common file?
I am using the windows version of grep "GNU Grep".
syntax: grep [OPTIONS] PATTERN [FILE...]
How can I combine different options with different patterns?
Both lines listed here work on their own. But I have not yet succeeded in combining them.
grep…
minu
- 3
0
votes
0 answers
when running "LC_ALL=C.UTF-8 egrep -axv '.*'" to detect non-UTF8 characters how can I determine the exact character that caused the detection?
I frequently use this command:
LC_ALL=C.UTF-8 egrep -laxv '.*' filename
this tells me if the file contains any non-UTF8 characters (actually I usually use this in conjunction with find to scan many files at once)
I can remove the -l to get the…
Displayname71
- 165
0
votes
1 answer
'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 search result in a file
egrep "$input"…
0
votes
3 answers
egrep to find in a file with numbers and words those numbers not starting with 91 or 93
I have a file with numbers and words and I need to get only…
Andrés Chandía
- 123