grep is a command-line tool for searching text patterns in files

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Is there any tools that will let me check String length of XML Node

Am wondering if there are any tools that will do this: Exmaple XML: <node1> <Data> <Unique>123456789-1234567891</Unique> </Data> </node1> What i was hoping ...
3
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3answers
58 views

I want to grep out a text string from many files, how can I run a loop for this

I have a thousand .xyz files, all numerical data and in the same directory. Some of them have the text string "END" at the very end of them. I'm not sure how to loop a grep command so that it removes ...
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2answers
36 views

Egrep back referencing not working

I have trying top back reference the first captured group in the below command: $ ls -lR | egrep 'd(rw(x|s)|rw-|r-(x|s)|-w(x|s)|r--|-w-|--(x|s))(rw(x|s)|rw-|r-(x|s)|-w(x|s)|r--|-w-|--(x|s))---' ...
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3answers
44 views

Find files with the exception list of file name in separate file

I have 10 files in a directory.. test1.txt test2.txt test3.txt . . test10.txt Also a exclude file names exclude.txt which have the below file names test1.txt test2.txt test3.txt text4.txt I need ...
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0answers
60 views

Need some help on awk/grep command on shell script

This is in reference to Need some help on grep command on shell script I have a log file and I am trying to write a shell script to find pause/play happening or not (Success /Failure). The script ...
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3answers
32 views

How can I parse JSON to test the string value of a nested key?

For example, here is my program's output (bspwm, if you wanted to know): { "id": 29360131, "splitType": "vertical", "splitRatio": 0.5, "birthRotation": 90, "vacant": true, "sticky": ...
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2answers
54 views

Listing lines that start with a number and end in a sequence [closed]

So basically, I need help with listing lines with their line numbers that contain one or more words that start with 42 and end in a sequence of any number (but not zero) of character X. so far what I ...
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2answers
48 views

Shell output from one command as input to other

I am trying to automate Forever JS to keep my dev server running and for that I need to check and stop the forever process to start another one. By running sudo forever list I get the following ...
2
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2answers
78 views

Print lines of a file between two matching patterns [duplicate]

How can I print all the lines between two lines starting with one pattern for the first line and ending with another pattern for the last line? Update I guess it was a mistake to mention that this ...
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0answers
43 views

Standard deviation of number next to a pattern

I have a file with lots of tags with a number next to them, set out like this: <Score>4 ... other data <Score>2 ... other data <Score>3 and so on... I have used grep to get the ...
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2answers
88 views

parse HTML in Bash (when grep just isn't enough)

This is driving me insane, as I'm sure there must be some program doing the job but I just can't find it. To be noted, I'd be on ARM/Raspberry so unfortunately Xidel is not an option here, unless ...
2
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7answers
345 views

grep ignores files starting with dot [duplicate]

Let me give an example: $ echo Hello > file1 $ echo Hello > file2 $ echo Hello > .file3 $ grep Hello * 2>/dev/null file1:Hello file2:Hello Here you can see the grep ignored .file3 which ...
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1answer
48 views

Grep: Why escape modifiers?

By modifiers I mean the following: -\{m\} exactly m repetitions of previous character - \{m,\} at least m repetitions of previous character - \{m,n\} any number of repetitions of prev char between m ...
3
votes
2answers
84 views

Find each line matching a pattern but print only the line above it

I need to find a string and need to print the line above it. case1: The same line won't have the more than one matching pattern ie) consider a file containing $cat > para returns between the ...
1
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2answers
42 views

what command would I use to see all lines from a file starting with a line that I find with grep

what command would I use to see all lines from a file starting with a line that I find with grep so I imagine something like a tail, but beginning from a line that I identify with a grep. For ...
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4answers
51 views

How to print only the ticket numbers?

Following is the content of the file and i need to print only the ticket numbers which are enclosed in "[]". Curious to know if this can be done using both sed and grep commands. ...
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2answers
33 views

Counting the occurences of character in a filesystem tree

The task was to find the number of occurrences of character 'a' in all files in the directory (recursively). My script was this find . -type f -exec grep -o 'a' {} \; 2>/dev/null | wc -l but it ...
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2answers
59 views

Why does perl regex find pattern \\label\{.*?\} but not \\ref.*?\} or \\autoref\{.*?\} in TeX Files?

I am using perl to parse many multilingual text files. I need to change the text between two patterns: Desired Changes For example, the English original version looks like this: \label{whatever} ...
2
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1answer
50 views

Redirecting looped grep commands to separate files

I'd like to use grep to recursively search through a directory, using patterns listed in a file, then store each result in its own file for reference later. I'm a complete novice at bash scripting, ...
3
votes
1answer
108 views

Grep is not matching non-ascii characters

I found a problematic sequence of a supposedly UTF-8 encoded text file. The strange thing is that grep seems unable to match this non-ASCII line. $ iconv -f utf8 -t iso88591 corrupt_part.txt --output ...
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2answers
122 views

Grep line after/before -A/-B substitution in AIX

I'm using AIX 6.1 which isn't supporting in -B and -A flags: grep: Not a recognized flag: B Lets say I want to run: cat file | grep -E -B4 'Directory entry type.*Indirect' | grep "Database name" | ...
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1answer
39 views

Write a program that finds a phrase and print out

I need help with writing a shell program that finds the phrase "Candy Land" and prints out the 10 lines surrounding the line where that word is found. Assume it is only found once. I don't know what ...
0
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1answer
23 views

Piping difference of grep -c's with different regex to bc

I need to find the number of words in a file (1 word per line) that do not contain some set of letters. To do this I want to take the difference of grep -c '.' <file> and grep -c ...
1
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1answer
59 views

Search a string in files in the current directory, omit duplicates

Assuming I want to write a line which prints out lines which match a specific string without repeating duplicate lines .. I want to search for this string in the files of the current directory: grep ...
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2answers
53 views

How to reverse sort the output from grep -rc

I want to be able to sort the output from the grep -rc command, I am currently using the command: grep -rc "Pattern" . | sort -t: -rk2,2n however the list is still sorted from low to high, ...
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2answers
57 views

How can I do a binary search of a text file for a specific character string?

I have a text file that contains a large number of records, each on a single line. Some of the records have special characters that have been corrupted, and I'm attempting to find those by looking for ...
1
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1answer
42 views

Why “grep -q -v” only works with single line input?

If I use grep -q in combination with -v to return 0 if there are no matches or 1 if there is a match, it works as long as input is a single line: $ echo 'abc' | grep -q -v a; echo $? 1 $ echo 'abc' | ...
0
votes
1answer
60 views

replace long text string (script with MANY special characters). sed, awk, grep

My site was hacked / infected. I replaced the url of the malicious link, but other elements in the malicious script are still making my site get blocked. Without inserting a hundred or so "escapes", ...
0
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2answers
37 views

Retrieve string between two strings

I'm trying to extract a substring in the middle of two strings. I execute this grep command: echo "http://www.miweb.es/midoc-87-documento-texto_mf_4150310_1.txt" | grep -Po "(?<=midoc-).*(?=-)" ...
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4answers
60 views

Grep for a string and then echo a string back from a record

I have the following record: MiraServ.log.10:2016/02/07 15:25:13 3 All stations busy!! MiraServ.log.10:2016/02/07 15:25:13 1 TranHasError (3627,-2) ...
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1answer
30 views

Remove file name when recursively counting number of occurrences of a pattern

When I run my grep command: grep -rc 'PATTERN' . it prints out the number of lines that the pattern occurs, but it looks like this: ./hotel_232424.dat:234 and so on... How would I remove the ...
0
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3answers
138 views

Filtering content from df output

I have the command below to get the filesystem usage on a server: df -k | awk '{print $5 " " $6}' | grep % When executed, the following are the results: 97% / 0% /proc 0% /etc/mnttab 0% /dev/fd ...
3
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2answers
153 views

Is there a way I can grep recursively over all the files in the current directory to find a pattern and then print it in order of high to low?

So so far, the code looks like this: grep -rc 'Author' $1 It prints out all the files in the directory, which is taken as an argument. However, how would I sort the output (for example): - ...
0
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3answers
38 views

List out the original IP Address of the host

I have following content in the file. I would like to print the IP address which is Under Name. Server: 17.128.100.12 Address: 17.128.100.12#53 Name: Testserver1 Address: 17.146.118.156 ...
3
votes
1answer
99 views

Print some lines before and after pattern match excluding lines matching another patterns

I use awk on Solaris to print 5 lines before and after a pattern match. Currently, the following one-liner does the job: /usr/xpg4/bin/awk 'c-->0;$0~s{if(b)for(c=b+1;c>1;c--)print ...
3
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1answer
37 views

grep output of cdrecord

I would like to parse the output of cdrecord/wodim using grep. cdrecord -v outputs lines like Track 01: 49 of 75 MB written (fifo 100%) [buf 100%] 10.2x. The problem is that cdrecord uses ...
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3answers
129 views

Finding and removing words beginning / ending with numbers

I have a large file (>10000 lines) that contains one word per line, with a newline character after each word. The words contain no spaces. I'd like to list (or even better, output to a new file) any ...
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2answers
33 views

Grep contains 'this' but can't contain 'this' into a file

I'm currently working on a homework assignment and it is basically saying, "Find the single line with "Ju" but does not contain the letter "w" in that line" I believe that I have to use grep. However ...
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3answers
61 views

Using grep to remove comments from a file

I'm trying to use grep to remove the comments from a file, smb.conf to be specific, and bash is giving me an error. I found this question How to remove all comments from a file? that gives the syntax ...
0
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3answers
47 views

How to search multiple Pattern in grep while ignoring the first pattern if appearing consecutively

I have an input like below. I want to find out everything starting with abc and ending with mno including lines in between but if abc appears again before mno comes, then I want to ignore the first ...
0
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3answers
44 views

How do I search a directory of data files and print out how many times a certain word appears in each file?

This is what I currently have, however it prints the total number of times Author appears in all of the files: 128367 grep -roh 'Author' $1 | wc -w However how do I print out the word count for ...
1
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1answer
61 views

Combining strings command and grep: how to limit results to null-terminated strings

I have a feeling that it is strings which is thwarting my efforts here. The binary files I want to use strings on unfortunately yield several matches per file, even though it is a 100% rule that ...
2
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4answers
672 views

The wc -w command outputs incorrect answer [duplicate]

I have to find how many times the word shell is used in a file. I used grep "shell" test.txt | wc -w in order to count how many times that word has been used, but the result comes out 4 instead of 3. ...
0
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1answer
42 views

delete line that contains a case insensitive match

I have a file that contains information as so: 20 BaDDOg 31 baddog 42 badCAT 43 goodDoG 44 GOODcAT and I want to delete all lines that contain the word dog. This is my desired ...
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2answers
62 views

linux on aix dont work pgrep -lf ora_pmon

pgrep -lf ora_pmon ksh: pgrep: not found. somebody know who to change the code without pgrep this is the result on another Os pgrep -lf ora_pmon 4104 ora_pmon_dbpicsr 5092 ora_pmon_dbpiss2r 14393 ...
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vote
1answer
42 views

Linux + capture only the IP's from mount command

please advise how I can to print only the list of the IP's ( in the end of the lines ) , from mount output mount netapp64:/lunggg/OracleTeam/OracleCDs on /oracds type nfs ...
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5answers
631 views

Grep value from json file

my json file looks something like this [{"product":"Apple","id":"2134"},{"product":"Mango","id":"4567"}] I want to grep/sed/awk 'id' for given 'product'. Output: Enter product : Apple Your ...
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0answers
44 views

Unix scripting : Writing to another file with “:” is failing

I have below record (and many other such records) in one file 9460 xyz abc (lmn):1027739543798. Taxpayer's identification number (INN): 123. For all IIB. 2016/02/03 I need to search ...
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2answers
48 views

grep to search error_log and email only when results found?

Is it possible to use Grep to search a file and send a email based on the results? I have been using grep SEARCHSTRING /logs/error_log | mailx -s subject name@emailaddress.co.uk But I don't want ...
2
votes
1answer
26 views

grep awk or sed a CSV Row containing a certain part of a web address

I am trying to clean up a Squid log file and I want to delete rows with a website containing "/0/" in the 11th column. An example: Row1: column1, column2, column3...column10, ...