Tagged Questions
0
votes
0answers
25 views
How to use grep command to find the matching pattern and some more characters? [duplicate]
I have a compressed JS code and I want to find a pattern, but since the file is compresses, it has only a line, and the match pattern is all the file. The output is too much large.
grep -r ...
4
votes
2answers
35 views
recursive search for a pattern, then for each match print out the specific SEQUENCE: line number, file name, and no file contents
What I am after is almost exactly the same as can be found here, but I want the
format "line number, separator, filename, newline" in the results, thus displaying
the line number at the beginning of ...
3
votes
1answer
58 views
How to trick an init script into returning 0
I have a init script which is poorly designed because it does not conform to the Linux Standard Base Specifications
The following should have an exit code of 0 if running, and 3 if not running
...
2
votes
4answers
79 views
Zgrep stop after first match when arguments are passed from xargs
I'm using this command to find patterns in zip files (similar to the one) suggested here
http://superuser.com/questions/144926/unix-grep-for-a-string-within-all-gzip-files-in-all-subdirectories
find ...
2
votes
0answers
90 views
exit code of grep in trap where the script is launched by upstart service
recently I encountered a problem in ubuntu upstart and trap in bash shell.
I use ubuntu 12.04
the upstart script(/etc/init/player.conf) is:
start on (local-filesystems and runlevel [2345])
stop on ...
9
votes
2answers
230 views
Script to quickly test all keyboard keys
I need to check some notebooks for bad keyboard keys, and so I'd like to speed that up as much as possible.
I found nothing for this specific task, so my idea is a script that reads the pressed keys ...
1
vote
3answers
64 views
grep for an alphanumeric strings of any length with a colon on each side
How would you grep for an alphanumeric strings of 1 to 50 characters (ideally, any length would work too) with a colon on each side – a typical result would be all the lines containing the string ...
3
votes
2answers
110 views
grep filter all lines plus one before each hit
I want to parse some output so I exclude all lines that contain either foo or bar, as well as all lines immediately preceding those lines. For example:
echo "
1 some line
2 line to exclude because ...
2
votes
3answers
151 views
Command substitution in for loop not working
I want to keep all files not ending with .bat
I tried
for f in $(ls | egrep -v .bat); do echo $f; done
and
for f in $(eval ls | egrep -v .bat); do echo $f; done
But both approaches yield the ...
2
votes
2answers
53 views
Filtering the result of the find command, so that it returns only directories
Is it possible to get only the results from find that are directory paths? Using find with some option, or using grep or some other utility the results are piped into as a filter?
I thought something ...
2
votes
4answers
169 views
How to use the grep result in command line?
When I use grep to find some text which I need, it will display lines containing a match to the given pattern.
For example,
# grep -r ".*Linux" *
path0/output.txt:I hope you enjoyed working on ...
3
votes
2answers
173 views
Optimizing a shell script with long running while loop
I have written a shell script which has to do the following:
Capture session commands into one file.
Every individual command into separate file.
Mail every individual command file content based on ...
2
votes
2answers
102 views
Faster way to find matching patterns from external file grep -f {patternfile} {source} in BASH
In *nix terminal (Bash) os there any other faster way to find a pattern (or excluding them - egrep -v option) than using this:
grep -f {patternfile} {source}
Using this option is painfully slow for ...
-1
votes
1answer
172 views
if condition, loop in grep [closed]
Could someone please provide help for me.
I tried to start writing a shell script but am getting hung up with this issue.
I need to grep commands "adb shell ps" and find in it 3 processes with names:
...
3
votes
5answers
113 views
grep for multiple strings in files, and then list the files in the order of size
I am in a folder with lots of .txt file, I would like to find all the files which contain both stringA and stringB (not necessarily on the same line), then list these files in the order of the size ...
