Hi, guys,
today, I have copied a simple script which runs correctly on a computer to another one. But, the latter informs me:
Floating point exception!
@ ./command_module a b c
where command_module is the module compiled by myself.
So, I have fixed it by following steps:
1.... (5 Replies)
Dear all,
I have the following question. Let's say that I have the following script
#!/bin/bash
value=0.4987865
a=` printf "%6.2f" $value `
b=`echo $value + $value | bc -l`
echo $a
echo $b
exit
And the exit is:
0,00
.9975730
Thus, the problem is that the printf order does not... (2 Replies)
Hello, I have an output like
Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - and I want to take only the 'wlan0' string. This can be done by
a="Interface Chipset Driver wlan0 Intel 4965/5xxx iwlagn - "
b=${a:25:6}
echo $bThe thing is that wlan0 can be something else, like eth0 or... (2 Replies)
What is the deal with explanation point in bash? I thought only dollar sign ($), the back-tick (`) and the backslash (\) were special in double quotes. Can someone please explain what is going on here? Why do I have to use single quotes or backslash the "!"?
$ vlc "/media/Part... (4 Replies)
Hello Everyone,
I am currently working on a script to calculate optimal tcp window size
the formula that I am following is
2 x (bandwith speed /8 * Round Trip Time ) = x
This is what I have so far
#!/bin/bash
echo "Enter connection speed" << Get the speed of the Connection from... (3 Replies)
Heyas
I have a script (vhs - video handler script, using ffmpeg) to encode videos.
It also encodes a dvd, but until now just non-copy-protected ones, so i've tried to add/implement a vobcopy wrapper to be used by my script.
At first it looked quite fine, but when changing from the first VOB... (9 Replies)
Hello,
I have often found bash to be difficult when it comes to floating point numbers. I have data with rows of tab delimited floating point numbers. I need to find the smallest number in each row that is not 0.0. Numbers can be negative and they do not come in any particular order for a given... (9 Replies)
I have the following code snippet in bash
if ]; then
minm=`echo "$diff" | bc`
fi
It works well for most of the cases. However lets say diff is -0.17 and minm is -0.0017. In such a case the comparison seems to fail. Is the correct way to compare a mixture of positive and... (12 Replies)
Discussion started by: ngabrani
12 Replies
LEARN ABOUT MOJAVE
zipgrep
ZIPGREP(1L)ZIPGREP(1L)NAME
zipgrep - search files in a ZIP archive for lines matching a pattern
SYNOPSIS
zipgrep [egrep_options] pattern file[.zip] [file(s) ...] [-x xfile(s) ...]
DESCRIPTION
zipgrep will search files within a ZIP archive for lines matching the given string or pattern. zipgrep is a shell script and requires
egrep(1) and unzip(1L) to function. Its output is identical to that of egrep(1).
ARGUMENTS
pattern
The pattern to be located within a ZIP archive. Any string or regular expression accepted by egrep(1) may be used. file[.zip] Path
of the ZIP archive. (Wildcard expressions for the ZIP archive name are not supported.) If the literal filename is not found, the
suffix .zip is appended. Note that self-extracting ZIP files are supported, as with any other ZIP archive; just specify the .exe
suffix (if any) explicitly.
[file(s)]
An optional list of archive members to be processed, separated by spaces. If no member files are specified, all members of the ZIP
archive are searched. Regular expressions (wildcards) may be used to match multiple members:
* matches a sequence of 0 or more characters
? matches exactly 1 character
[...] matches any single character found inside the brackets; ranges are specified by a beginning character, a hyphen, and an end-
ing character. If an exclamation point or a caret (`!' or `^') follows the left bracket, then the range of characters within
the brackets is complemented (that is, anything except the characters inside the brackets is considered a match).
(Be sure to quote any character that might otherwise be interpreted or modified by the operating system.)
[-x xfile(s)]
An optional list of archive members to be excluded from processing. Since wildcard characters match directory separators (`/'),
this option may be used to exclude any files that are in subdirectories. For example, ``zipgrep grumpy foo *.[ch] -x */*'' would
search for the string ``grumpy'' in all C source files in the main directory of the ``foo'' archive, but none in any subdirectories.
Without the -x option, all C source files in all directories within the zipfile would be searched.
OPTIONS
All options prior to the ZIP archive filename are passed to egrep(1).
SEE ALSO egrep(1), unzip(1L), zip(1L), funzip(1L), zipcloak(1L), zipinfo(1L), zipnote(1L), zipsplit(1L)URL
The Info-ZIP home page is currently at
http://www.info-zip.org/pub/infozip/
or
ftp://ftp.info-zip.org/pub/infozip/ .
AUTHORS
zipgrep was written by Jean-loup Gailly.
Info-ZIP 20 April 2009 ZIPGREP(1L)