is one way. You don't escape parenthesis when you want a real parenthesis, they are escaped to play back groupings in a specific order.
It never occurred to me to not escape a control character like parenthesis, thanks for the tip. This processed a 1GB input file in about 1.5 min, which is pretty slick I think.
How can I use sed to replace a ctrl character such as 'new line' (\0a) to something else? Or any other good command can do this job?
Thanks,
Hillxy (5 Replies)
Hi,
Here is what I want to do
I want to search local directory and its sub directory, all the files which contain any string like _12345, then remove this string.
String is a combination of _ plus a random integer number.
For example, here is one line in a file before
<properties... (1 Reply)
Hi all,
Suppose I have a file with the contents below, and I only want to print words %S_ then | sort -u.
------------------------------
The %S_MSG that starts with '%.*s' is too long. Maximum length is %d.
The %S_MSG name '%.*s' contains more than the maximum number of prefixes. The... (5 Replies)
Hi everyone
I have file1 contains:
'7832'
' 8765
6543
I want a sed command that will format as:
'7832' , '8765' , '6543'
I tried
sed -e s/\'//g -e 's/^*//;s/*$//' file1 > file2
sed -e :a -e '$!N; s/\n/ /; ta' file2
which gives: 7832 8765 6543
I need some help to continue with... (5 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet able... (0 Replies)
Hi,
I require to replace 2 items:
1. replace start of all lines in a file with ' except the first line
2. replace end of all lines in a file with '||chr( except last line
I am able to do the entire file using
sed -e s/^/\'/g -e s/$/\'\|\|chr\(/g "$file" > newfile.txt
but am not yet... (3 Replies)
Hi,
I'm trying to replace a range of characters by their position in each line by spaces.
I need to replace characters 95 to 145 by spaces in each line.
i tried below but it doesn't work
sed -r "s/^(.{94})(.{51})/\ /" inputfile.txt > outputfile.txt
can someone please help me... (3 Replies)
I have several files in a directory that look like this:
jacket-n r
potential-n -
outcome-n f
reputation-n b
I want to replace the characters in the second column with certain numbers. For instance, I want the letters 'f', 'r' and 'b' in the second column to replaced with 0 and I want the... (1 Reply)
This seems like it should be an easy problem, but for some reason I am struggling with the solution.
I simply want to replace all characters after the first 3 characters with another character, preferably with sed.
Thanks in advance.
Like this, but producing the proper number of *'s:
sed... (30 Replies)
Hi,
I hope you can help me out please?
I need to replace from character 8-16 with AAAAAAAA and the rest should stay the same after character 16
gtwrhtrd11111111rjytwyejtyjejetjyetgeaEHT
wrehrhw22222222hytekutkyukrylryilruilrGEQTH
hrwjyety33333333gtrhwrjrgkreglqeriugn;RUGNEURGU
... (4 Replies)
Discussion started by: stinkefisch
4 Replies
LEARN ABOUT CENTOS
grub-render-label
GRUB-RENDER-LABEL(1) User Commands GRUB-RENDER-LABEL(1)NAME
grub-render-label - generate a .disk_label for Apple Macs.
SYNOPSIS
grub-render-label [OPTION...] [OPTIONS]
DESCRIPTION
Render Apple .disk_label.
-b, --bgcolor=COLOR
use COLOR for background
-c, --color=COLOR
use COLOR for text
-f, --font=FILE
use FILE as font (PF2).
-i, --input=FILE
read text from FILE.
-o, --output=FILE
set output filename. Default is STDOUT
-t, --text=STRING
set the label to render
-v, --verbose
print verbose messages.
-?, --help
give this help list
--usage
give a short usage message
-V, --version
print program version
Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.
REPORTING BUGS
Report bugs to <bug-grub@gnu.org>.
SEE ALSO
The full documentation for grub-render-label is maintained as a Texinfo manual. If the info and grub-render-label programs are properly
installed at your site, the command
info grub-render-label
should give you access to the complete manual.
grub-render-label (GRUB) 2.02-2ubuntu8.3 July 2018 GRUB-RENDER-LABEL(1)