Here are two other methods. The first uses msort, which allows fields to be specified from the right-hand side. The other uses a quickly written perl code, which reverses the characters on each line:
Hello people, I was wondering if anyone could help me?
I want to produce a shell script that changes the filename extension on all matching file.
E.G. change all files called ‘something.rtf' to ‘something.doc' by giving the command:
Changex rtf doc
*where ‘Changex' is the name of... (2 Replies)
guys i have a question:
i'd like to sort files (as many I want) in columns so to visualize them one near the other...so let's say i have just 2 files:
FILE1
John
Mary
Bridget
FILE2
Anne
Robert
Mark
i would like to obtain:
John Anne
Mary Robert
Bridget ... (2 Replies)
I am trying to write a Korne Shell Script wherein we have to sort
files according to their extensions(for eg. 1.sh, 5.sh, 9.sh together;
4.csh, 120.csh, 6.csh together and 7.ksh, 2.ksh, 59.ksh together) and
move them to their respective directories viz. sh, csh and ksh...
I think,... (1 Reply)
I am trying to store file with certain file extensions to list but having some problems.
Here is a part of the code
set fryLst = ""
set fxtLst = ""
foreach f ($AfullNameLst)
set fname = $f:r
set fext = $f:e
if ("$fext" == ".ry") set fryLst = "$fryLst $f"
if ("$fext" == ".xt")... (2 Replies)
hi ladies and gents:
can you give me a command to sort content of file and save it to the file itself:
file1
roy@emerson.com
joy@emerson.com
irish@emerson.com
output would be file1 on same directory:
file1:
irish@emerson.com
joy@emerson.com
roy@emerson.com (6 Replies)
Hello Unix board community,
I have to program a shell script, but I am a complete noob so I hope I get some help here. The assignment is as follows:
The program removes all comments regardless of formatting or language from files with specific file name extensions (php, css, js, ...).... (3 Replies)
Hi,
I am having trouble while using 'sed' with reading files. Please help. I have 3 files. File A, file B and file C. I want to find content of file B in file A and replace it by content in file C.
Thanks a lot!!
Here is a sample of my question.
e.g. (file A: a.txt; file B: b.txt; file... (3 Replies)
Hi friends,
I need to check for the latest file
say i have list of files like this
test_files
test_files.1
test_files.2
test_files.3.bin.Z
I do it this way
ls -lrt test_files*|tail -1
Now i need to exclude test_files.3.bin.Z even if it is the latest file,how do i do... (3 Replies)
hi all,
i had the below script
x=`cat input.txt |wc -1`
awk 'NR>1 && NR<'$x' ' input.txt > output.txt
by using above script i am able to remove the head and tail part from the input file and able to append the output to the output.txt but if i run it for second time the output is... (2 Replies)
Hi,
I have two pipe separated files as below:
head -3 file1.txt
"HD"|"Nov 11 2016 4:08AM"|"0000000018"
"DT"|"240350264"|"56432"
"DT"|"240350264"|"56432"
head -3 file2.txt
"HD"|"Nov 15 2016 2:18AM"|"0000000019"
"DT"|"240350264"|"56432"
"DT"|"240350264"|"56432"
I want to list the... (6 Replies)
Discussion started by: Prasannag87
6 Replies
LEARN ABOUT REDHAT
wrjpgcom
WRJPGCOM(1) General Commands Manual WRJPGCOM(1)NAME
wrjpgcom - insert text comments into a JPEG file
SYNOPSIS
wrjpgcom [ -replace ] [ -comment text ] [ -cfile name ] [ filename ]
DESCRIPTION
wrjpgcom reads the named JPEG/JFIF file, or the standard input if no file is named, and generates a new JPEG/JFIF file on standard output.
A comment block is added to the file.
The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. Although the standard doesn't actually define what COM blocks
are for, they are widely used to hold user-supplied text strings. This lets you add annotations, titles, index terms, etc to your JPEG
files, and later retrieve them as text. COM blocks do not interfere with the image stored in the JPEG file. The maximum size of a COM
block is 64K, but you can have as many of them as you like in one JPEG file.
wrjpgcom adds a COM block, containing text you provide, to a JPEG file. Ordinarily, the COM block is added after any existing COM blocks;
but you can delete the old COM blocks if you wish.
OPTIONS
Switch names may be abbreviated, and are not case sensitive.
-replace
Delete any existing COM blocks from the file.
-comment text
Supply text for new COM block on command line.
-cfile name
Read text for new COM block from named file.
If you have only one line of comment text to add, you can provide it on the command line with -comment. The comment text must be sur-
rounded with quotes so that it is treated as a single argument. Longer comments can be read from a text file.
If you give neither -comment nor -cfile, then wrjpgcom will read the comment text from standard input. (In this case an input image file
name MUST be supplied, so that the source JPEG file comes from somewhere else.) You can enter multiple lines, up to 64KB worth. Type an
end-of-file indicator (usually control-D) to terminate the comment text entry.
wrjpgcom will not add a COM block if the provided comment string is empty. Therefore -replace -comment "" can be used to delete all COM
blocks from a file.
EXAMPLES
Add a short comment to in.jpg, producing out.jpg:
wrjpgcom -c "View of my back yard" in.jpg > out.jpg
Attach a long comment previously stored in comment.txt:
wrjpgcom in.jpg < comment.txt > out.jpg
or equivalently
wrjpgcom -cfile comment.txt < in.jpg > out.jpg
SEE ALSO cjpeg(1), djpeg(1), jpegtran(1), rdjpgcom(1)AUTHOR
Independent JPEG Group
15 June 1995 WRJPGCOM(1)