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UNIX for Dummies Questions & Answers
Grep of a SubString
Post 302470324 by ctsgnb on Tuesday 9th of November 2010 07:03:10 PM
11-09-2010
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1. Shell Programming and Scripting
This is probably pretty simple butI'm not sure how to best go about it.
If I have
FILE="myBigLongFileName_1.xls"
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# that gives "myBigLongFileName_1"
All i want to do now is chop the "_1" from the end of $FILE_PREFIX
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Ok, I'm stumped and can't seem to find relevant info.
(I'm not even sure, I might have asked something similar before.):
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Hi,
I have a value of a filepath in a variable
DATAFILE with value as "customtop/gpsore37/gepspo/1.0/bin/ashoka.csv
".
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That is EXTENSION = .csv
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Hello everyone.
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Dear All,
i have a file that contains,
FROM_DATE: 06-08-2007 00:00:00 TO_DATE: 06-08-2007 23:59:59 Total number of lines: 6874154
in another file,the contain is,
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Hi,
I am trying to do something which I thought was very simple but still being a beginner, has proved not to be.
Input:
val1 val2 val3 val4 val5 val6
.
.
.
etc
Desired Output:
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Hi all,
I am stuck in a tricky situation where i want to search a substring from a line through shell script.What i meant by that is given in the example shown below:
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Hi All,
In ksh, am trying to get a substring stuff done. Not sure where the problem is.. can you guys guide me on this...
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LEARN ABOUT LINUX
shcomp
SHCOMP(1) User Environment Utilities SHCOMP(1) NAME
shcomp - compile a ksh93 shell script SYNOPSIS
shcomp [ options ] [infile] [outfile]] ORIGIN OF THIS MAN PAGE
This man page was written by Christophe Martin <Schplurtz@free.fr> for the Debian GNU/Linux system. It is based on "shcomp --man" output. DESCRIPTION
Unless -D is specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh93 can read and execute with the same effect as the original script. Since aliases are processed as the script is read, alias definitions whose value requires variable expansion will not work correctly. If -D is specified, all double quoted strings that are preceded by $ are output. These are the messages that need to be translated to locale specific versions for internationalization. If outfile is omitted, then the results will be written to standard output. If infile is also omitted, the shell script will be read from standard input. OPTIONS
-D, --dictionary Generate a list of strings that need to be placed in a message catalog for internationalization. -n, --noexec Displays warning messages for obsolete or non-conforming constructs. -v, --verbose Displays input from infile onto standard error as it reads it. --man Displays this man page on standard error and exits. --help Shows a short help message and exits. EXIT STATUS
0 Successful completion. >0 An error occurred. DEBIAN WARNING
On a Debian GNU/Linux system, more than one package may provide ksh. the output of shcomp can only be used by ksh93. Any other ksh will be unable to run the compiled script. EXAMPLE
( echo '#! /bin/ksh93' ; shcomp myscript ) > myscript.bin && chmod 755 myscript.bin ./myscript.bin SEE ALSO
ksh(1) IMPLEMENTATION
version shcomp (AT&T Labs Research) 2003-03-02 author David Korn <dgk@research.att.com> copyright Copyright (c) 1982-2005 AT&T Corp. license http://www.opensource.org/licenses/cpl1.0.txt KSH93 Fri Jun 3 2005 SHCOMP(1)