I wanted to know if i can use RegEx in a for-loop of a shell script.
Here's a scenario, I have a set of files say x1, x2, x3..x9 in a directory(obviously with files other than this pattern). I want to append a line of text to all files that follow pattern x[1-9]. Can someone help me out? I know its simple. But i just cannot get it work.
Code:
for i in "x[1-9]"
do
echo hello >> "$i"
done
I'm looking for something like the one above(which is not working for me).
Last edited by Scrutinizer; 06-20-2012 at 11:28 AM..
Reason: code tags
-Hi
I have multiple files which contain a line with the word "exec". I need to add the following pattern " -cmode -ccheap" on the same line where "exec" is at the end. Any idea? Thanks a lot in advance to everybody... -A (2 Replies)
Hi! Everyone,
Say this file1
--------------
line 1 51610183 420001010 0010CTCTLEDPPOO 2151610183
line 2 2151610183 420001010 0030A2TH2
line 3 2151610183 420001010 0040A2TH3
line 4 2151610183 420001010 ... (0 Replies)
Hello,
I need to find all *.xml files that matched by pattern on Linux. I need to have written the file name on the screen and then change the pattern in the file just was found.
For instance.
I can start the script with arguments for keyword and for value, i.e
script.sh keyword... (1 Reply)
Hello,
I have 50 text files in a directory called "AllFiles"
I want to make a program that will go inside of the "AllFiles" Directory and count the number of lines in each individual text file. Then, the program will calculate how many more lines there are over 400 in each text file and... (7 Replies)
Input:
09:43:46,538 INFO first text
10:45:46,538 INFO second
text
11:00:46,538 INFO third
more
text
Output:
09:43:46,538 INFO first text
10:45:46,538 INFO second text
11:00:46,538 INFO third more text
The rule is to append all lines so each line contains this format... (7 Replies)
Hi,
I want to append "chr" to all col 2 values of all files in a particular folder.
This is what I came up with but isnt working. Please help.
ls -1 * |
(
while read line
do
awk 'BEGIN {FS=OFS=":"} {$2="chr"$2;print $0}' $line > $line_new
done
)
Another question is, how to delete... (7 Replies)
I have some html with hrefs that contain local links to pdf filenames. These filenames should have standardised names, i.e. there should be a label prior to the ".pdf" filename suffix. There can be many of these links on a single line of text and some may already have the label. For example
... (13 Replies)
hi,
i have /etc/inittab, I want to add another line after that when i find a pattern "l6:6:wait:/etc/rc.d/rc 6".
original
l6:6:wait:/etc/rc.d/rc 6
after-change
l6:6:wait:/etc/rc.d/rc 6
/sbin/if-pp-to-cng (3 Replies)
Hi All-I am new to Unix , I need to write a script. Can someone help me with a requirement where I have list of files in a directory, I want to Merge the files if a pattern of string matches in filenames?
AAAL_555A_ORANGE1_F190404.TXT
AAAL_555A_ORANGE2_F190404.TXT
AAAL_555A_ORANGE3_F190404.TXT... (6 Replies)
Hi,
I have an issue modifying a file. Below is the content of the file.
File name - a.txt
SELECT LISTAGG(SCORE), LISTAGG(VB),
LISTAGG(SCORE*12 + 3),
LISTAGG(DOB)
from T_CONCAT ;
SELECT LISTAGG(SCORE),
LISTAGG(VB),
LISTAGG(SCORE*100 + 3),
from... (1 Reply)
Discussion started by: Mannu2525
1 Replies
LEARN ABOUT OSX
ptargrep5.16
PTARGREP(1) Perl Programmers Reference Guide PTARGREP(1)NAME
ptargrep - Apply pattern matching to the contents of files in a tar archive
SYNOPSIS
ptargrep [options] <pattern> <tar file> ...
Options:
--basename|-b ignore directory paths from archive
--ignore-case|-i do case-insensitive pattern matching
--list-only|-l list matching filenames rather than extracting matches
--verbose|-v write debugging message to STDERR
--help|-? detailed help message
DESCRIPTION
This utility allows you to apply pattern matching to the contents of files contained in a tar archive. You might use this to identify all
files in an archive which contain lines matching the specified pattern and either print out the pathnames or extract the files.
The pattern will be used as a Perl regular expression (as opposed to a simple grep regex).
Multiple tar archive filenames can be specified - they will each be processed in turn.
OPTIONS --basename (alias -b)
When matching files are extracted, ignore the directory path from the archive and write to the current directory using the basename of
the file from the archive. Beware: if two matching files in the archive have the same basename, the second file extracted will
overwrite the first.
--ignore-case (alias -i)
Make pattern matching case-insensitive.
--list-only (alias -l)
Print the pathname of each matching file from the archive to STDOUT. Without this option, the default behaviour is to extract each
matching file.
--verbose (alias -v)
Log debugging info to STDERR.
--help (alias -?)
Display this documentation.
COPYRIGHT
Copyright 2010 Grant McLean <grantm@cpan.org>
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
perl v5.16.2 2013-08-25 PTARGREP(1)