I have prepared a script to submit a string in a txt file.
However there are somethings that I have to check before submitting the string in the txt file.
One of those checks is to determine whether the string entered contains any metacharacters.
I have tried sth like;
however it doesn't work.
How can i check whether the string entered includes any metacharacters or not?
Last edited by Franklin52; 01-17-2011 at 04:23 AM..
Reason: Please use code tags
Is there a way to use metacharacters in a loop or in an if.
I want to allow a user to enter Y, y, Yes, yes, Yah, etc...
in a loop I tried:
read response
while *" ]
do........
and
while *" ]
do .........
this works for grep or egrep but not in loops
Why?????? (4 Replies)
I want to display an asterisk to the screen as part of a string. I know how to use the Backslash to escape it's value. But how do I display it without showing the Backslash? (1 Reply)
I have a file that looks like this:
G. KRESSLAR
9618 W. APPALOOSA DRIVE
SUN CITY, AZ 85373
SHIRLEY ALLEN
7272 W. VIA MONTOYA DRIVE
GLENDALE, AZ 85310
LOUIS VALDEZ
244441 N. 86TH AVENUE
PEORIA, AZ 85383
DONNA NEWBON
3231 W. DENTON #D
PHOENIX, AZ 85017
SARAH WILSON
6534 W. PALO... (3 Replies)
Hi everyone,
My problem is strange, I cannot think of why this is happening.
I have a set of data that looks like this:
Although it does not look it, the fields are tab delimited. I have made sure of this, and awk does recognize them as such. However, it divides what I would expect... (2 Replies)
:confused:Hi ,
Can someone please advise what is the meaning of metacharacters in below code?
a_PROCESS=${0##*/}
a_DPFX=${a_PROCESS%.*}
a_LPFX="a_DPFX : $$ : "
a_UPFX="Usage: $a_PROCESS"
Regards,
gehlnar (3 Replies)
Hello. I am learning how to use Unix through an online course. Unfortunately the text that we use isn't very good, so I could use some help with a pretty basic question.
Use metacharacters and the ll command to list all filenames under the datafiles directory that contain a dot "." with the... (2 Replies)
Hi I have an XML File with default header($ lines of data) and default tail (Two Lines) and the body has occurrence of start<Folder> and ends with </Folder>.
Now i want to split each occurrence i mean each start and end in to separate files with header and tail.
For example:
header line... (12 Replies)
Hi there,
say I have a line with multiple columns but with different separation formats: spaces, tabs..
Is it possible to have AWK print the separation format between each column? (10 Replies)
I need to sum up the values in field nr 5 in a data file that contains some file listing. The 5th field denotes the size of each file and following are some sample values.
1,775,947,633
4,738
7,300
16,610
15,279
0
0
I tried the following code in a shell script.
awk '{sum+=$5} END{print... (4 Replies)
Discussion started by: krishmaths
4 Replies
LEARN ABOUT OPENDARWIN
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If zgrep is invoked as zegrep or zfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, zgrep uses
it as the grep program to be invoked. For example:
for sh: GREP=fgrep zgrep string files
for csh: (setenv GREP fgrep; zgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), zdiff(1), zmore(1), znew(1), zforce(1), gzip(1), gzexe(1)ZGREP(1)