This will run grep on every file and directory found - one at a time. Also, the output of these greps is then piped to -exec, which I am pretty sure does not exist. Restricting this to 'jsp' and 'js' files would help:
And instead of using find to invoked grep on each file, use xargs:
The two greps are not needed, because grep -l regexfilename will read the entire file it it does not find regex, and grep -n regexfilename reads the entire file to find matches. By not using two greps, you are saving a extra (partial) read of files that contain regex.
Now the problem of finding matches of 10,000 patterns. Re-reading each file 10,000 times would be time consuming at best. But given that the pattern can occur anywhere in the file, that is what you are stuck with:
Now if the patterns occur only in lines like:
then you use some perl to make this run faster.
This will read in every file in filelist (or read from stdin), search every file for the 'ObjectContents' function calls - saving the filename and location of every pattern found. Once that is done, the pattern file is read in and checked for matching patterns.
Hi All,
I have a file that I need to be able to find a pattern match on a line, search that line for a text pattern, and replace that text.
An example of 4 lines in my file is:
1. MatchText_randomNumberOfText moreData ReplaceMe moreData
2. MatchText_randomNumberOfText moreData moreData... (4 Replies)
i am very new to UNIX
plz help me in this scenario
i have two text files as below
file1.txt
name=Rajakumar.
Discipline=Electronics and communication.
Designation=software Engineer.
file2.txt
name=Kannan.
Discipline=Mechanical.
Designation=CADD Design Engineer.
... (6 Replies)
Hello All,
I have a following task that I need to accomplish through a script or program and I am looking for some help as I have exhausted my ideas.
1. given: a text file with thousands of lines
2. find: pattern A in file and get line number ( grep -n works)
3. find: the first occurence of... (14 Replies)
Hi
I have a log file (say log.txt). I have to search for a line which has the string ( say ERROR) in the log file and copy 15 lines after this into another file (say error.txt). Can someone give me the code and this has to be in PERL
Thanks in advance
Ammu (3 Replies)
Hi,
Please let me know how to find text and print text and its previous line. Please don't get irritated few days back I asked text and next line. I am using HP-UX 11.11
Thanks for your help. (6 Replies)
FOLKS ,
i have a text file that is generated automatically of an another korn shell script, i want to bring in the fifth line of the text file in to my korn shell script and look for a particular word in the line . Can you all share some thoughts on this one.
thanks...
Venu (3 Replies)
Dear All,
i want to search particular string and want to replance next line value.
following is the test file.
search string is
tmp,???
,10:1 "???" may contain any 3 character it should remain the same and next line replace with ,10:50
tmp,123 --- if match tmp,??? then... (3 Replies)
Hi All,
I am sitting on HPUX. I want to change the exit into #exit, which appears into 3red line of code in shell scripting, wondering how shell script to be called up to perform action. I have following code in all files. Now, I need to find the text exit and replace into #exit.
#!/sbin/sh... (10 Replies)
Hi ,
I am trying to write an shell, which reads a text file (from a location) having a list of numbers of strictly 5 digits only ex: 33144
Now my script will check :
1) that each entry is only 5 digits & numeric only, no alphabets, & its not empty.
2)then it executes a shell script called... (8 Replies)
i have a text file as belows, it includes 2 columns, 1st is the column name, 2nd is the file_name
data_file.txt
column_name file_name
col1 file1
col2 file2
col3 file1
col4 file1
col5 file2
now, i would like to... (4 Replies)