Tagged Questions

1
vote
1answer
38 views

netcat output into separate files using string delimters

I want netcat to pipe the output of a tcp/ip connection to commands that examine the output and split it into distinct files separated by the strings "msg" and "/msg" from the output, something like ...
3
votes
1answer
49 views

Using grep to remove lines from a file which contain a string from another file

I have a file containing words (one per line) such as Dog Fish Cat Shoes I have a secondary file in CSV format such as 1,shoes,red 2,apple,black 3,fog,blue I would like to use grep with ...
0
votes
4answers
82 views

Regular expression to find senders IP using grep or other languages

I have input file that contains: 19:04:01.631948 IP (tos 0xc0, ttl 1, id 0, offset 0, flags [none], proto UDP (17), length 48) 181.173.82.61.1985 > 250.66.33.195.1985: HSRPv0-hello 20: ...
0
votes
1answer
91 views

Grep issue (match two strings on same line)

Here I have some grep command which is not working correctly: cat file1.txt: apples Date: Sun, 24 Feb 2013 8:14:06 -0800 peaches melons cherry sky cloud green purple yellow cat file2.txt: apples ...
3
votes
2answers
110 views

ash scripting: space-containing variable refuses to be grepped

I am trying to run the script listed at http://talk.maemo.org/showthread.php?t=70866&page=2 on its intended hardware, a Nokia Linux phone running BusyBox ash. The script receives the name of WiFi ...
2
votes
1answer
76 views

Grep the whole body of a function

Supposing I know that someFile.php contains the definition for someFunction(). How would I go about displaying the whole body of the function in stdout? If I know that the body is 10 lines long then I ...
2
votes
4answers
165 views

How do you remove all occurrences of values in one list from another list?

I have a list of symbols such as... wer sfe efo How do I remove all instances of these (unique) symbols from another list of (non-unique) symbols? So in the following list, the lines starting ...
3
votes
4answers
311 views

Using grep to display second character in string?

I have a string that is always 3 characters... the first one and the last one are always the same. example: ▁▅█ Is there a simple way to only display the one in the middle? (which is the only one ...
0
votes
1answer
288 views

solaris 10 + display 2 lines after match by grep?

how to match string , and display the two line under the string for example ( I want to match the "manufacture" string and display the two lines after cat ima.conf # the manufacturer or driver ...
1
vote
2answers
271 views

How to extract e-mail or domain from mixed data file in linux

File content: 17541 From Email subscription@test.com Inbound Policy Manager Envelope Analysis Profiler 17541 From Email subscription@yahoo.com Inbound Policy Manager ...
1
vote
5answers
791 views

How to grep column after second pipe

Example: 3|100|test@test.com|0|0|6:1,10,11,12,13,2,3,4,5,6,9|7:1,10,11,13,16,2,4,5,6,9| Expected view after grep: test@test.com
0
votes
3answers
63 views

How to search file for matching whole lines?

I have a command which sends to stdout a series of numbers, each on a new line. I need to determine whether a particular number exists in the list. The match needs to be exact, not a subset. For ...
2
votes
2answers
157 views

Grep, find line with minimum x words

Is there a way to find all lines with grep, that contains at least x words?
5
votes
3answers
222 views

Search for files with more than one term (grep, awk?)

I am using a command like this to find files with the word 'term' in them: grep -l term * But I now want to be able to find files which have two different words in them (let's call them termA and ...
3
votes
3answers
126 views

unix command to verify span of word in text

What unix command(s) can I use to determine the line span that a word appears in text? The "span" being equal to the line number of the last instance of a word minus the line number of the first ...
0
votes
4answers
190 views

Bash script to get specific prior context

I am searching through some log files where there are groups of actions performed. At the start of each group there is a line that has information about the group and then lots of verbose informion ...
2
votes
1answer
67 views

sanity check file to produce binary answer

What Unix command(s) can I use to determine the existence of each of several words and the non-existence of each of several words which will produce a binary answer? For example: I want to be sure ...
0
votes
1answer
226 views

IP Address dotted decimal to /8 or /16 notation using bash,sed or awk?

I have an input file that contains a list of ip addresses and the ip_counts(some parameter that I use internally.)The file looks somewhat like this. 202.124.127.26 2135869 202.124.127.25 2111217 ...
2
votes
2answers
822 views

How can I identify non-ASCII characters from the shell?

Is there a simple way to print all non-ASCII characters and the line numbers on which they occur in a file using a command line utility such as grep, awk, perl, etc? I want to change the encoding of ...
0
votes
2answers
81 views

Generate a files list and truncate it in 2 list of X Mb of files each

I need to generate a list of all files in a certain dir, and truncate it in X lists containing each one a fixed amount of data of files. E.g. I have 95 Gb of data. generate the file list ...
1
vote
1answer
28 views

Looking for a command that will return the proc, func, etc that uses another proc, func, etc

Grep-ing for a function name to see where it's being used returns a list of rows and row numbers. Is there a smart way of using grep and awk to get the name of the calling procedure instead? Thanks
3
votes
4answers
2k views

Print back-reference in regular expression

I was hoping for a way to make sed replace the entire line with the replacement (rather than just the match) so I could do something like this: sed -e "/$some_complex_regex_with_a_backref/\1/" and ...
3
votes
4answers
1k views

How to remove lines from large text file using bash

I got a huge text file (log file) in my CentOS which I would like to remove top part of, probably couple of thousand lines each day. (Or probably just split into two) I have search this site and ...
0
votes
1answer
430 views

“find | grep | awk” fails miserabily

I'm scanning for all shell scripts on my server, and are doing this by the following command: find / -type f -exec file --mime-type {} \; | grep "text/x-shellscript" This is working fine, and here ...
1
vote
3answers
243 views

SW to replace a string in Windows

I have a text file (actually XML) that I want to be able to change using a command line. In other words, as part of a Windows batch, I want to locate a string (in this case @@@@, which uses a ...
0
votes
1answer
2k views

How to construct a grep command with a variable argument in bash?

I'm trying to do something like this in bash: grep ( date | awk '{print "2006-" $6}' ) /some/file/here But that syntax is incorrect. The goal is to grep /some/file/here for the pattern 2006-2011 ...
0
votes
1answer
2k views

grep the specific date patterns

I have a requirement, where i need to grep from the logs which covers from date range 2011/03/25 to 2011/04/04 (YYMMDD). I have done this with egrep command, seems to be working fine for me. cat ...
0
votes
8answers
221 views

Unix command to list the portion of the end of a log file from a line containing only hyphens to end of file

I have a long log file where each entry begins with a line containg only hyphens.
2
votes
4answers
5k views

grepping a substring from a grep result

Given a log file, I will usually do something like this: grep 'marker-1234' filter_log What is the difference in using '' or "" or nothing in the pattern? The above grep command will yield many ...
0
votes
3answers
1k views

how to use grep, sed, and awk to parse tags?

I want to write a script that finds a open/close tag pair in a text file and prepends a fixed string to each line between the pair. I figure I use grep to find the tag line numbers and either awk or ...