Hi,
I have a question on bash. Basically I would like to print a file name using bash. I am actually trying to grep a particular character in sequential files.
I have alot files such that a.txt, b.txt,c.txt...etc.
If I found a certain character, I would print that particular filename.
I... (5 Replies)
I am trying to write a script that prompts users for date and time, then process the gzip file into awk. During the ksh part of the script another file is created and needs to be processed with a different set of pattern matches then I need to combine the two in the end. I'm stuck at the part... (6 Replies)
I need help to split a filename 'a0crk_user:A0-B0123$#%test' into a0crk_user and A0-B0123 and print the output under 2 different columns namely
User and Status.
for eg. the output should like below:
User Status
---- ------
a0crk_user A0-B0123 (3 Replies)
#!/bin/ksh
for files in `ls *.gz`
do
gunzip -c $files | awk -v s=$files -F\" '{print s","$6}'
done
I have tried FILENAME parameter but it did not work please help. (1 Reply)
Im want to print filename inside loop .. the code im using :-
Filename_1=abc_20090623_2.csv.lk
Filename_2=def_20090623_2.csv.lk
i want to extract filename till .csv eg
Filename_1=abc_20090623_2
Filename_2=def_20090623_2
How can i do this inside the for loop
... (3 Replies)
I'm trying to clean up my samba share and need to print the found file or print the path of the image it tried to searched for. So far I have this but can't seem to get the logic right. Can anyone help point me in the right direction?
for FILE in `cat list`; do
if ;
then
... (1 Reply)
Hi,
using awk command I want to print filenames and the last line of each file, in a single command line statement.
I want to use 'awk', because I want to add more functionality to this logic later.
I tried the following on *.sh files in the current directory
find . -type f -name "*.sh"... (26 Replies)
I have files named with different prefixes. From each I want to extract the first line containing a specific string, and then print that line along with the prefix.
I've tried to do this with a while loop, but instead of printing the prefix I print the first line of the file twice.
Files:... (3 Replies)
Hi,
I have filename as:
010020001_S-FOR-Sort-SYEXC_20180109_062320_0100.x937
I need first 5 words of my filename along with the respective delimiters:
I tried this:
f=010020001_S-FOR-Sort-SYEXC_20180109_062320_0100.x937
echo $f | awk -F '' '{print $1$2$3$4$5}'
010020001SFORSortSYEXC
... (11 Replies)
Discussion started by: gnnsprapa
11 Replies
LEARN ABOUT MOJAVE
bytes
bytes(3pm) Perl Programmers Reference Guide bytes(3pm)NAME
bytes - Perl pragma to force byte semantics rather than character semantics
NOTICE
This pragma reflects early attempts to incorporate Unicode into perl and has since been superseded. It breaks encapsulation (i.e. it
exposes the innards of how the perl executable currently happens to store a string), and use of this module for anything other than
debugging purposes is strongly discouraged. If you feel that the functions here within might be useful for your application, this possibly
indicates a mismatch between your mental model of Perl Unicode and the current reality. In that case, you may wish to read some of the perl
Unicode documentation: perluniintro, perlunitut, perlunifaq and perlunicode.
SYNOPSIS
use bytes;
... chr(...); # or bytes::chr
... index(...); # or bytes::index
... length(...); # or bytes::length
... ord(...); # or bytes::ord
... rindex(...); # or bytes::rindex
... substr(...); # or bytes::substr
no bytes;
DESCRIPTION
The "use bytes" pragma disables character semantics for the rest of the lexical scope in which it appears. "no bytes" can be used to
reverse the effect of "use bytes" within the current lexical scope.
Perl normally assumes character semantics in the presence of character data (i.e. data that has come from a source that has been marked as
being of a particular character encoding). When "use bytes" is in effect, the encoding is temporarily ignored, and each string is treated
as a series of bytes.
As an example, when Perl sees "$x = chr(400)", it encodes the character in UTF-8 and stores it in $x. Then it is marked as character data,
so, for instance, "length $x" returns 1. However, in the scope of the "bytes" pragma, $x is treated as a series of bytes - the bytes that
make up the UTF8 encoding - and "length $x" returns 2:
$x = chr(400);
print "Length is ", length $x, "
"; # "Length is 1"
printf "Contents are %vd
", $x; # "Contents are 400"
{
use bytes; # or "require bytes; bytes::length()"
print "Length is ", length $x, "
"; # "Length is 2"
printf "Contents are %vd
", $x; # "Contents are 198.144"
}
chr(), ord(), substr(), index() and rindex() behave similarly.
For more on the implications and differences between character semantics and byte semantics, see perluniintro and perlunicode.
LIMITATIONS
bytes::substr() does not work as an lvalue().
SEE ALSO
perluniintro, perlunicode, utf8
perl v5.18.2 2013-11-04 bytes(3pm)