Sponsored Content
Top Forums Shell Programming and Scripting sed replacing specific characters and control characters by escaping Post 302631153 by ijustneeda on Friday 27th of April 2012 12:59:11 AM
Old 04-27-2012
sed replacing specific characters and control characters by escaping

Code:
sed -e "s/[\.\/\%'=:\(\)\`_\"\@\;\+\*\#\$\?\!]/ /g" old.txt > new.txt

While I do know some control characters need to be escaped, can normal characters also be escaped and still work the same way? Basically I do not know all control characters that have a special meaning, for example, ?, ., % have a meaning and have to be escaped to be replaced.

Does the above sed work as expected to replace all of the below characters with a space?
Code:
 ,
  .
  @
  /
  #
  :
  (
  )
  '
  *
  %
  $
  +
  ?
  _
  =
  "
  !
  ;


Last edited by Franklin52; 04-27-2012 at 03:45 AM.. Reason: Please use code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

how to replace control characters using sed?

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)
Discussion started by: hillxy
5 Replies

2. Shell Programming and Scripting

replacing specific characters in a string

Hi Friends, Following is an output of a script OPWQERIUTYKLSADFJHGXZNMCVBWQOPERIUTYKLSADFJHGXZNMCVB I want to replace above string's 11 to 17 character by ******* (7 stars) How can it be done? Please somebody guide me. (6 Replies)
Discussion started by: anushree.a
6 Replies

3. Shell Programming and Scripting

help on sed replacing special characters

Hello, I have a file with many lines with below format: \abc\\1234 jkl\\567 def\\345 \pqr\\567 \xyz\\234 Here, i need to do 2 things. 1. replace \\ with \ 2. remove starting \ so output to be as below: (11 Replies)
Discussion started by: prvnrk
11 Replies

4. Shell Programming and Scripting

Escaping Special characters

I want to append the following line to /var/spool/cron/root: */7 * * * * /root/'Linux CPU (EDF).sh' > /dev/null 2>&1 How to accomplish this using echo? ---------- Post updated at 04:09 PM ---------- Previous update was at 04:07 PM ---------- "Linux CPU (EDF)" is actually stored in a... (11 Replies)
Discussion started by: proactiveaditya
11 Replies

5. UNIX for Dummies Questions & Answers

Escaping non-readable characters using grep, sed or awk

I'm trying to parse out DNS logs from dozens of different domain controllers over a large period of time. The logs are rolled up into individual text files by size, which may contain only a portion of a day's activity or several day's worth (depending on amount of activity). I'm splitting them by... (4 Replies)
Discussion started by: seanwpaul
4 Replies

6. UNIX for Dummies Questions & Answers

sed replacing in vi, / characters in the middle

I tried to replace the following in vi: old: 'e/thesis/pp/zones/zones' new: 'd/so162/fix/pp' For that, I used: :%s/e/thesis/pp/zones/zones/d/so162/fix/pp/g but doesn't work, a trailing character error message appeared. How can I get it? Thanks in advance (3 Replies)
Discussion started by: Gery
3 Replies

7. Shell Programming and Scripting

Sed - merge lines bw 2 specific characters

Hi, I have a bash script and I am looking for a command that will merge specific lines together. Sample Data: registration time = 1300890272 Id = 1 setd = 0 tagunt = 26 tagId=6, length=8, value= tagId=9, length=5, value= tagId=7, length=2, value= tagId=16, length=2, value= tagId=32,... (8 Replies)
Discussion started by: Winsarc
8 Replies

8. Shell Programming and Scripting

How delete characters of specific line with sed?

Hi, I have a text file with some lines like this: /MEDIA/DISK1/23568742.MOV /MEDIA/DISK1/87456321.AVI /MEDIA/DISK2/PART1/45753131.AVI /IMPORT/44452.WAV ... I want to remove the last 12 characters in each line that it ends "AVI". Should look like this: /MEDIA/DISK1/23568742.MOV... (12 Replies)
Discussion started by: inaki
12 Replies

9. Shell Programming and Scripting

Replacing specific characters using sed

Hi, I have a text file which is output from a server and it lists all the files in a specific volume. However, the volume name appears as volume_name:. I would like to replace this with \\volume_name\volume_name. This is not a problem in itself as I can use sed to globally look for the... (8 Replies)
Discussion started by: vnayak
8 Replies

10. HP-UX

Replacing control characters in HPUX

Hello dears, Please tell me how can I replace control characters with normal string. I have a file that contains normal string and ^A ^C control characters. I tried to use sed and awk without any luck. sed 's/^A/foo/g' text > text1 //not worked sed 's/\x01/foo/g' text > text1 ... (6 Replies)
Discussion started by: sembii
6 Replies
merge_fonts(3alleg4)						  Allegro manual					      merge_fonts(3alleg4)

NAME
merge_fonts - Merges two fonts into one font. Allegro game programming library. SYNOPSIS
#include <allegro.h> FONT *merge_fonts(FONT *f1, FONT *f2) DESCRIPTION
This function merges the character ranges from two fonts and returns a new font containing all characters in the old fonts. In general, you cannot merge fonts of different types (eg, TrueType fonts and bitmapped fonts), but as a special case, this function can promote a mono- chrome bitmapped font to a color font and merge those. Example: FONT *myfont; FONT *myfancy_font; FONT *lower_range; FONT *upper_range; FONT *capitals; FONT *combined_font; FONT *tempfont; ... /* Create a font that contains the capitals from */ /* the fancy font but other characters from myfont */ lower_range = extract_font_range(myfont, -1, 'A'-1); upper_range = extract_font_range(myfont, 'Z'+1, -1); capitals = extract_font_range(myfancy_font, 'A', 'Z'); tempfont = merge_fonts(lower_range, capitals); combined_font = merge_fonts(tempfont, upper_range); /* Clean up temporary fonts */ destroy_font(lower_range); destroy_font(upper_range); destroy_font(capitals); destroy_font(tempfont); RETURN VALUE
Returns a pointer to the new font or NULL on error. Remember that you are responsible for destroying the font when you are finished with it to avoid memory leaks. SEE ALSO
extract_font_range(3alleg4), is_trans_font(3alleg4), is_color_font(3alleg4), is_mono_font(3alleg4), exfont(3alleg4) Allegro version 4.4.2 merge_fonts(3alleg4)
All times are GMT -4. The time now is 02:34 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy