I am struck in the issue which I want to share with all of you.
What I am trying to do is For every line in a file I have to replace a particular character from the given character in a file
For Example
Suppose the data is
I will pass three argument to shell script
./script 5 x y
It mean for Evey 5th character in line if it found x it should replace by y and if it found y it should replace with x
So output should be ---------- Post updated at 03:46 AM ---------- Previous update was at 03:45 AM ----------
So far what I wrote in shell script is
But it is doing at one way
Hi,
I have a file with large number of records. Sample below:
123456789QWERT2U 2 erter
987123678ZXCVB6Y 5 7689
934567123GHJKUI4O 7
-
--
--
I want the 16th character in each record to be replaced with the below as follows;so 2 will become K, 6 will become O and 4 will become... (3 Replies)
cat input.txt
agsbdafgd
ertebrtreter
ahrbrwerg
The last character of a line that does not start with a would be changed to Z.
Final output:
agsbdafgd
ertebrtreteZ
ahrbrwerg
Can anyone post the sed command to do that? (2 Replies)
Hi All,
Was wondering how I can do the following....
I have a String as follows
"ACCTRL000005022RRWDKKEEDKDD...."
This string can be in a file called tail.out or in a Variable called $VAR2
Now I have another variable called $VAR1="000004785" (9 bytes long), I need the content of... (5 Replies)
My script is extracting data from SQl session, however sometimes the result contains one or multiple space after/before any numerical value.
e,g .
"123","1 34","1 3 45", "43 5"
How to remove these unwanted spaces..so that I can get the following result :
"123","134",1345","435" (1 Reply)
Lets say I have file.txt:
(Product:Price:QuantityAvailable) (: as delimiter)
Chocolate:5:5
Banana:33:3
I am doing a edit/update function.
I want to change the Quantity Available, so I tried using the SED command to replace 5, but my Price which is also 5 is changed instead.
(for the Banana... (13 Replies)
I have a text file that looks like this:
-----------------------------------------
sta WP00
time 10/23/2013 20:10:17
sensor trillium_240_2 0 583
add
close sensor trillium_240_2 10/23/2013 20:10:17
sensor trillium_120 0 279
add
close sensor trillium_120 10/23/2013 20:10:35... (11 Replies)
cat file.txt
file 1123.x July 23:222 /cd/hh2/k39/ss2/f7d8d9d8e6r5t4s/dd2/e/s7a/s7a2afa5017d8b975-1.7-1395610245-b22e19bbc477b134
i wish to only extract out the 1.7 (anything within the first - -)
i try to look for the sed command under match the first occurence of pattern but out of luck, my... (6 Replies)
friends I am struck in a situation where I need to comment a line start with space as below in a file
root@LOCALHOST * rw
LOCALHOST* r
I should comment second line only
Any help please (16 Replies)
I have a situation where a file "config.txt" looks like this
Servername:
OS:
Serername:
OS:
Servername:
OS:
....
....
...
Servername:
OS:
looking for the sed syntax to replace the "Nth" occurrence of Servername (i would apply the same logic to OS as well), want to replace the Nth... (4 Replies)
Hi All,
I need to print the characters in the previous line just before the regular expression match
Please have a look at the input file as attached
I need to match the regular expression ^ with the character of the previous like and also the pin numbers
and the output file should be like... (6 Replies)
Discussion started by: kshitij
6 Replies
LEARN ABOUT PLAN9
tr
TR(1) General Commands Manual TR(1)NAME
tr - translate characters
SYNOPSIS
tr [ -cds ] [ string1 [ string2 ] ]
DESCRIPTION
Tr copies the standard input to the standard output with substitution or deletion of selected characters (runes). Input characters found
in string1 are mapped into the corresponding characters of string2. When string2 is short it is padded to the length of string1 by dupli-
cating its last character. Any combination of the options -cds may be used:
-c Complement string1: replace it with a lexicographically ordered list of all other characters.
-d Delete from input all characters in string1.
-s Squeeze repeated output characters that occur in string2 to single characters.
In either string a noninitial sequence -x, where x is any character (possibly quoted), stands for a range of characters: a possibly empty
sequence of codes running from the successor of the previous code up through the code for x. The character followed by 1, 2 or 3 octal
digits stands for the character whose 16-bit value is given by those digits. The character sequence followed by 1, 2, 3, or 4 hexadecimal
digits stands for the character whose 16-bit value is given by those digits. A followed by any other character stands for that character.
EXAMPLES
Replace all upper-case ASCII letters by lower-case.
tr A-Z a-z <mixed >lower
Create a list of all the words in one per line in where a word is taken to be a maximal string of alphabetics. String2 is given as a
quoted newline.
tr -cs A-Za-z '
' <file1 >file2
SOURCE
/sys/src/cmd/tr.c
SEE ALSO sed(1)TR(1)