Hi all this is simple but bad day for me nothing work out ..
Problem is that I wan to check the argument passed to my script and accordignly exit or setup ENV variable
I have a script name src_cpcp_preproc.sh
i want to pass 2 argumet from command line argumet and check it in the script... (13 Replies)
Hi group,
I want to replace the occurance of a particular text in a paragraph.I tried with Sed,but Sed only displays the result on the screen.How can i update the changes in the original file???
The solution should be a one liner using awk and sed.
Thanks in advance. (5 Replies)
Hello all, I have a Bash command I'm using on one system that replaces text in filenames, I'ts not working on another system that uses the Csh shell. Can anyone tell me what I need to do
when i run
for f in *;do mv $f ${f/text1/text2};done
on the CSH shell i get ""Missing }."" (7 Replies)
There's a replacement in bash for getchar or get functions of C and C++?Those functions read the next char avaliable in the input stream.
I've tried something like:
OLD_STTY=`stty -g`
stty cbreak -echo
look=`dd if=/dev/tty bs=1 count=1 2>/dev/null`
stty $OLD_STTY
But it is not working... (3 Replies)
Hello
I have a bash script where I need to do a substring replacement like this:
variable2=${variable1/foo/bar}
However, I only want "foo" replaced if it is at the end of the line.
However, this does not work:
variable2=${variable1/foo$/bar}
as you can see I'm using the $ regex for... (2 Replies)
Thanks for giving your time and effort to answer questions and helping newbies like me understand awk.
I have a huge file, millions of lines, so perl takes quite a bit of time, I'd like to convert these perl one liners to awk.
Basically I'd like all lines with ISA sandwiched between... (9 Replies)
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
I have some time series data that I need to resample or downsample at some specific time intervals. The firs column is time in decimal hours. I am tryiong to resample this data every 3 minutse. So I need a data value ever 0.05. Here is the example data and as you can see, there time slot for 0.1500... (3 Replies)
Hi
I want to replace time stamp in the following line
PROCNAME.Merge.exchMon.CODE.T_QSTART 08:45 read
assuming the new time stamp is 09:45 ; the line is getting replaced as below
:45 read
I'm trying to use the perl one liner in bash script
perl -pi... (4 Replies)
Discussion started by: charlie87
4 Replies
LEARN ABOUT MOJAVE
ptargrep5.18
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 v5.18.2 2018-08-17 PTARGREP(1)