03-19-2014
If you have a doubt about what a command option does, you should first consult the command's manual page.
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1. Shell Programming and Scripting
hii,
i need a unix command which replaces all occurrences of a substring within a string with another substring.
My solution:
string="plalstalplal"
sub1="al"
sub2="mlkl"
echo sed 's/$s2/$s3/g' < s1 > p
i want to know how to read the variables s2 and s3..
thaks a lot
bye (1 Reply)
Discussion started by: priya_9patil
1 Replies
2. Shell Programming and Scripting
I have three files that the string inside it I want to replace
so my code will be
#!/bin/bash
read -p "please input the old string:" string1
read -p "please input the new string:" string2
sed -i "s/string1/string2/g" *.c
but the problem is.. the string that I want to replace can't be... (2 Replies)
Discussion started by: Viken
2 Replies
3. Shell Programming and Scripting
Hi all
suppose i have a string "abacus sabre", i need to replace occurences 'ab' with 'cd' and i need to store this result into same string and i need to return this result from script to the calling function, where as the string is passed from calling function.
i tried like this
... (1 Reply)
Discussion started by: veerapureddy
1 Replies
4. UNIX for Dummies Questions & Answers
Hi there,
I'd like to replace STRING_ZERO in FILE_ZERO.txt with the value of VALUEi-th by using something like that:
VALUE1=1000
VALUE2=2000
VALUE3=3000
for((i=1;i<=3;i++));
do
sed "s/STRING_ZERO/$VALUE'$i'/" FILE_ZERO.txt >> FILE_NEW.txt;
done
but it doesn't work...
Any help... (9 Replies)
Discussion started by: Giordano Bruno
9 Replies
5. Shell Programming and Scripting
I have following set of dirs:
/dir1/dir2/subdir1
file1
file2
/dir1/dir3/subdir1
file4
file5
/dir1/dir4/subdir1
file6
file7
All of these files have a common string in them say "STRING1", How can I... (3 Replies)
Discussion started by: Hangman2
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6. Shell Programming and Scripting
Hi,
Can anyone help me know how to replace a string with the new line
for ex:
file1
val1 or val2 or val3 or
I need to replace the "or" with new line.
Thanks in advance (2 Replies)
Discussion started by: mr_manii
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7. Shell Programming and Scripting
I'm trying to replace a string "99999999'" with the blank where ever is there in the file. Could you please help in unix scripting.
Thank You. (6 Replies)
Discussion started by: vsairam
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8. Shell Programming and Scripting
Help!
I'm trying this command but keep getting illegal syntax etc.
awk '{ sub(/00012345/,"000123456"); print}' >newfile
I don't understand. It works on one unix machine but not another! (4 Replies)
Discussion started by: Grueben
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9. UNIX for Dummies Questions & Answers
Dear all,
I have a file like below. I want to replace all the '.' in the 3rd column with 'NA'. I don't know how to do that. Anyone has an iead? Thanks a lot!
8 70003200 21.6206
9 70005700 17.5064
10 70002200 .
11 70005100 19.1001
17 70008000 16.1970
32 70012400 26.3465
33... (9 Replies)
Discussion started by: forevertl
9 Replies
10. Shell Programming and Scripting
Hi All,
I have below requirement:
I need to read each line in file.txt and replace string starting from position 9 to 24 {111111111111111,222222222222222,333333333333333} by common string "444444444444444" and save file.
File.txt:
03000003111111111111111 ... (3 Replies)
Discussion started by: smalode
3 Replies
LEARN ABOUT DEBIAN
ucf.conf
UCF.CONF(5) Debian GNU/Linux manual UCF.CONF(5)
NAME
ucf.conf - site-wide configuration file for ucf
SYNOPSIS
/etc/ucf.conf
DESCRIPTION
The file /etc/ucf.conf is actually a Bourne Shell snippet included during the package build process, and hence you may put any shell direc-
tive in that file (just make very sure you know what you are doing).
All the variables have reasonable default values, and some may be overridden on a per run or a per individual basis by using environment
variables, and all configurable variables can be overridden by options to the scripts themselves.
The value of a variable can be set so:
a) Defaults exist in the rules file. These are the values used if no customization is done.
b) Some variables can be set in the config file /etc/ucf.conf. These values override the defaults.
c) Some variables can also be set by setting a corresponding environment variable. These values override the config file and the defaults.
d) Using script command line options. All configurable variables may be set by this method, and will override the other methods above.
Configuration File options
At the moment, the user modifiable variables supported are:
DEBUG Debugging information: The default value is 0 (no debugging information is printed). To enable debugging output, set the
value to 1.
VERBOSE Verbosity: The default value is 0 (quiet). To change the default behavior, set the value to 1.
conf_force_conffold
Force the installed file to be retained. The default is to have this variable unset, which makes the script ask in case
of doubt. This can be overridden by the environment variable UCF_FORCE_CONFFOLD
conf_force_conffnew
Force the installed file to be overridden. The default is to have this variable unset, which makes the script ask in case
of doubt. This can be overridden by the environment variable UCF_FORCE_CONFFNEW
conf_source_dir This is the directory where the historical md5sums for a file are looked for. Specifically, the historical md5sums are
looked for in either the file ${filename}.md5sum, or the subdirectory ${filename}.md5sum.d/
conf_old_mdsum_file
Force the historical md5sums to be read from this file, rather than defaulting to living in the source directory. Set-
ting this option overrides settings in the environment variable UCF_OLD_MDSUM_FILE
Files
System-wide defaults are placed in /etc/ucf.conf,
SEE ALSO
ucf(1),
BUGS
There are no bugs. Any resemblance thereof is delirium. Really.
AUTHOR
This manual page was written by Manoj Srivastava <srivasta@debian.org>, for the Debian GNU/Linux system.
Debian Feb 12 2002 UCF.CONF(5)