10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I need to identify the exact text of San Antonio Generator Running in the output my script which lands to a text file. Once SED finds the specific text, I need it to insert one line above the matched text.
Here is what I have so far that isn't working all that well for me. Any help would be... (7 Replies)
Discussion started by: jbrass
7 Replies
2. Shell Programming and Scripting
hi guys,
im trying to add the following line in my xml file
<dbrollbacksegs <oa_var="s_db_rollback_segs">NOROLLBACK</dbrollbacksegs>
when ever i find the following line
<dbsharedpool oa_var="s_dbsharedpool_size">300000000</dbsharedpool>
I have succedded till adding a new line... (1 Reply)
Discussion started by: smarlaku
1 Replies
3. Shell Programming and Scripting
help
i need to add a "nfsd" in new line after cron
ex:
cron
rpcbind
output:
cron
nfsd
rpcbind
i use
sed -e "/cron/G; s/$/nfsd/" myfile
output:
cron
nfsd
rpcbindnfsd (5 Replies)
Discussion started by: jamilzain
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4. Shell Programming and Scripting
Hi all,
assume that i am having the following line in a file called file1.
triumph and disaster must be treated same.
I want to replace this line with.
follow excellence success will chase you.
is it possible to do this using sed. if possible kindly post me the... (2 Replies)
Discussion started by: anishkumarv
2 Replies
5. Shell Programming and Scripting
I've been playing with sed, trying to get it to insert the contents of somefile.txt after line 13 on anotherfile.txt. I tried searching for a line with regex and attempting to insert something on the next line with:
find ./anotherfile.txt -type f -exec sed -i -e '/^dog/cat/' {} \;
but it... (2 Replies)
Discussion started by: unclecameron
2 Replies
6. Shell Programming and Scripting
HI All, I need to search for a particular pattern input by the user in order to delete the line. My username.txt has
username@email.com:John:149.0.3.4:1
username1@email.com:Harry:149.0.3.4:1
username1@email.net:Alex:149.0.3.4:1
username1@email.edu:Nemo:149.0.3.4:1
The program i written
... (3 Replies)
Discussion started by: ichar
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7. UNIX for Advanced & Expert Users
Problem: I have a lot of files, the files first line should always have 4 spaces before any text. Occasionally some of the files will miss the leading spaces and it's a problem. This is only in the first line.
So if there are 4 spaces then text, do nothing. If there are not 4 spaces, add 4... (2 Replies)
Discussion started by: Vryali
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8. Shell Programming and Scripting
hello i need some help here are the contents of my file.
test.txt
this is filename 1.mp3 http://www.url.com/filenamehashed
filename 2.mp3 http://www.url.com/fileamehashed
something_else.zip http://www.url.com/filenamehashed
so this file has 100 of these lines
filename url
I would... (9 Replies)
Discussion started by: mscice
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9. Shell Programming and Scripting
Hello Dudes,
I have a task to make a unix shell script that should search for a
specific TEXT in a file.If that TEXT is found, shell script should add
a comment statement before that TEXT line.
Ex : LINE 1 xxxxx
LINE 2 xxxx CALL xxxx
LINE 3 xxxx PERFORM UNTIL
if i... (1 Reply)
Discussion started by: kirrushna
1 Replies
10. UNIX for Dummies Questions & Answers
Hi,
I know you can use sed with a line number to find a line in a file and print it but can for the life of me not remember or find the syntax today!
Any help greatly appreciated!
Thanks (2 Replies)
Discussion started by: maverick
2 Replies
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)