Sponsored Content
Top Forums Shell Programming and Scripting How to replace all but the first 3 characters with sed? Post 302935243 by disedorgue on Friday 13th of February 2015 04:32:38 PM
Old 02-13-2015
Here profiling data of run java:
Code:
Flat profile of 0,76 secs (58 total ticks): main

  Interpreted + native   Method                        
 17,2%     0  +    10    java.io.FileOutputStream.writeBytes
  6,9%     0  +     4    java.lang.System.arraycopy
  3,4%     2  +     0    java.io.BufferedOutputStream.flush
  3,4%     2  +     0    java.util.Arrays.copyOfRange
  3,4%     2  +     0    java.io.BufferedWriter.write
  1,7%     1  +     0    java.lang.String.indexOf
  1,7%     1  +     0    sun.nio.cs.StreamEncoder.isOpen
  1,7%     1  +     0    java.nio.CharBuffer.wrap
  1,7%     1  +     0    java.io.BufferedReader.ensureOpen
  1,7%     1  +     0    sun.nio.cs.StreamEncoder.flushBuffer
  1,7%     1  +     0    java.io.PrintStream.write
  1,7%     1  +     0    sun.nio.cs.UTF_8$Decoder.decodeArrayLoop
 46,6%    13  +    14    Total interpreted

         Stub + native   Method                        
 44,8%     0  +    26    java.io.FileOutputStream.writeBytes
  5,2%     0  +     3    java.lang.System.arraycopy
 50,0%     0  +    29    Total stub

  Thread-local ticks:
  3,4%     2             Class loader


Global summary of 0,77 seconds:
100,0%    58             Received ticks
120,7%    70             Compilation
  3,4%     2             Class loader

real	0m0.908s
user	0m0.757s
sys	0m0.220s

Regards.

---------- Post updated at 10:32 PM ---------- Previous update was at 10:03 PM ----------

A ruby version it's my first ruby line, so I not sure that this line is the best...
Code:
time ruby -pe 'print $_[0,3]+"*"*($_.length-4)+"\n"' file1 >/dev/null 

real	0m0.092s
user	0m0.087s
sys	0m0.003s

Regards.
 

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

Sed replace characters not equal to an expression

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)
Discussion started by: poldo
5 Replies

3. Shell Programming and Scripting

Using sed to replace special characters

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)
Discussion started by: nimo
5 Replies

4. Shell Programming and Scripting

Bash: using SED, trying to replace some characters except first or last line

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)
Discussion started by: Chella15
0 Replies

5. UNIX for Dummies Questions & Answers

Bash: using SED, trying to replace some characters except first or last line

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)
Discussion started by: Chella15
3 Replies

6. Shell Programming and Scripting

sed replace range of characters in each line

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)
Discussion started by: Kevin Tivoli
3 Replies

7. Shell Programming and Scripting

Replace characters infile with sed

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)
Discussion started by: owwow14
1 Replies

8. Shell Programming and Scripting

sed replace nth characters with string

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

9. Shell Programming and Scripting

sed replace characters using a wildcard

Hello, I have some data that looks like the following, > <SALTDATA> (OVS0199262) HCl > <IDNUMBER> (OVS0199262) OVS0199262 > <SUPPLIER> (OVS0199262) TimTec > <EMAIL> (OVS0199262) info@timtec.net > <WEBSITE> (OVS0199262) http://www.timtec.net I need to remove the data in... (3 Replies)
Discussion started by: LMHmedchem
3 Replies

10. Shell Programming and Scripting

sed command on AIX, replace specific characters

Hi, Im using sed on an AIX machine. I am trying to change the 137-139 characters if they are a ' 36'/'000' to a '036'. The positions that need to be changed are fixed. the source data that I have is$cat v.txt 4000422985400050462239065593606500000007422985707771046154054910075641MC0318AMWAY... (9 Replies)
Discussion started by: dsid
9 Replies
GIT-CHECK-ATTR(1)                                                   Git Manual                                                   GIT-CHECK-ATTR(1)

NAME
git-check-attr - Display gitattributes information SYNOPSIS
git check-attr [-a | --all | attr...] [--] pathname... git check-attr --stdin [-z] [-a | --all | attr...] DESCRIPTION
For every pathname, this command will list if each attribute is unspecified, set, or unset as a gitattribute on that pathname. OPTIONS
-a, --all List all attributes that are associated with the specified paths. If this option is used, then unspecified attributes will not be included in the output. --cached Consider .gitattributes in the index only, ignoring the working tree. --stdin Read pathnames from the standard input, one per line, instead of from the command-line. -z The output format is modified to be machine-parseable. If --stdin is also given, input paths are separated with a NUL character instead of a linefeed character. -- Interpret all preceding arguments as attributes and all following arguments as path names. If none of --stdin, --all, or -- is used, the first argument will be treated as an attribute and the rest of the arguments as pathnames. OUTPUT
The output is of the form: <path> COLON SP <attribute> COLON SP <info> LF unless -z is in effect, in which case NUL is used as delimiter: <path> NUL <attribute> NUL <info> NUL <path> is the path of a file being queried, <attribute> is an attribute being queried and <info> can be either: unspecified when the attribute is not defined for the path. unset when the attribute is defined as false. set when the attribute is defined as true. <value> when a value has been assigned to the attribute. Buffering happens as documented under the GIT_FLUSH option in git(1). The caller is responsible for avoiding deadlocks caused by overfilling an input buffer or reading from an empty output buffer. EXAMPLES
In the examples, the following .gitattributes file is used: *.java diff=java -crlf myAttr NoMyAttr.java !myAttr README caveat=unspecified o Listing a single attribute: $ git check-attr diff org/example/MyClass.java org/example/MyClass.java: diff: java o Listing multiple attributes for a file: $ git check-attr crlf diff myAttr -- org/example/MyClass.java org/example/MyClass.java: crlf: unset org/example/MyClass.java: diff: java org/example/MyClass.java: myAttr: set o Listing all attributes for a file: $ git check-attr --all -- org/example/MyClass.java org/example/MyClass.java: diff: java org/example/MyClass.java: myAttr: set o Listing an attribute for multiple files: $ git check-attr myAttr -- org/example/MyClass.java org/example/NoMyAttr.java org/example/MyClass.java: myAttr: set org/example/NoMyAttr.java: myAttr: unspecified o Not all values are equally unambiguous: $ git check-attr caveat README README: caveat: unspecified SEE ALSO
gitattributes(5). GIT
Part of the git(1) suite Git 2.17.1 10/05/2018 GIT-CHECK-ATTR(1)
All times are GMT -4. The time now is 09:42 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy