Sponsored Content
Full Discussion: perl/sed -i removes link
Top Forums UNIX for Advanced & Expert Users perl/sed -i removes link Post 302637001 by bora99 on Tuesday 8th of May 2012 08:34:33 AM
Old 05-08-2012
perl/sed -i removes link

hello,

is it a behavior of
Quote:
perl -i
or
Quote:
sed -i
that "-i" removes unix link .

example :

i create a file "src_file" and link it to "link_file" and then i start "perl -i"

Quote:
echo "AAA" > src_file

ln -s src_file link_file

ll
lrwxr-x--- 1 user root 8 May 8 14:20 link_file -> src_file
-rw-r----- 1 user root 4 May 8 14:20 src_file

perl -i -pne 's/AAA/BBB/g' link_file

ll
-rw-r----- 1 user root 4 May 8 14:21 link_file
-rw-r----- 1 user root 4 May 8 14:20 src_file

cat link_file
BBB
the link is removed. does another option exists to change content of a file without temporary files ?

UNIX-Version: HP-UX and i also tested it with Linux

regards
 

9 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Providing a Link to Perl

I was wondering how I can create a link to the perl interpreter. On my old machine perl is at: user/local/bin/perl and my new machine has it at: user/bin/perl I don't want to have to change all my cgi scripts when I move them to the new server. Can I just create a new directory... (4 Replies)
Discussion started by: pingdom
4 Replies

2. Shell Programming and Scripting

Search Files from Array and link to original location in Perl

Hello, Question is related to Perl: I need to search few of the files from the array of file names. And after grepping the file names from an array I need to link these files to original location. The original location in this case is ref_path as input from the user. ##$ref_path is... (3 Replies)
Discussion started by: aarora1
3 Replies

3. Shell Programming and Scripting

sed command removes lines in file

Hi, I am modifying a file with sed command. i want to make SCORE= blank in the file whereever SCORE=somevalue. What will *$ do in the below command? cat $file | sed 's/SCORE=.*$/SCORE=\r/g' > newfile The last line is also missing in the new file. How to make SCORE='100' to SCORE=... (5 Replies)
Discussion started by: ashok.k
5 Replies

4. Shell Programming and Scripting

SED - Create mailto: link

Help! I am using sed to convert text files into easily viewed html tables. I have managed all except converting the email addresses to mailto: links. Multiple email addresses exist within the files, either preceded by a space or > (as part of HTML tag), and followed by either space or < I've... (5 Replies)
Discussion started by: Nigel_R
5 Replies

5. UNIX for Dummies Questions & Answers

Sed to remove only first line erroneously removes last line too

Hello everyone, This is my first posting. I have read the rules of this forum. I have searched many various threads and haven't found one that applies to my situation or suggestions to fix the issue. I do appreciate the help. I am trying to execute a basic UNIX script in a Solaris... (4 Replies)
Discussion started by: dqrgk0
4 Replies

6. Shell Programming and Scripting

Sed: removes \ from text which causes issues

Hi all, Hoping someone hoping someone might be able to help. i've got the following sed command which i'm using in a bash script that i'm trying to use to insert a new line into an already existing file so i don't have to manually enter it when setting stuff up. the existing script test2/3 are... (3 Replies)
Discussion started by: springs2
3 Replies

7. Solaris

How to link sed from /usr/bin/sed to /usr/local/bin/sed?

Hi Guys, OS:- Solaris 10 64Bit I have a small query. On one server a user is facing sed command issue. He gets error regarding sed for this location /users/hoy/2999/batch5/bin/internal.sh: /usr/local/bin/sed: not found How ever the sed is actually present at this location on server:-... (13 Replies)
Discussion started by: manalisharmabe
13 Replies

8. Shell Programming and Scripting

Rewrite sed to perl or run sed in perl

I am having trouble re-writing this sed code sed -nr 's/.*del(+)ins(+).*NC_0{4}(+).*g\.(+)_(+).*/\3\t\4\t\5\t\1\t\2/p' C:/Users/cmccabe/Desktop/Python27/out_position.txt > C:/Users/cmccabe/Desktop/Python27/out_parse.txt in perl Basically, what the code does is parse text from two fields... (12 Replies)
Discussion started by: cmccabe
12 Replies

9. Shell Programming and Scripting

sed or awk removes attachment in email

Hi We have a requirement to send email using shell script.email should have html body and pdf attachment. We used uuencode for attaching files and sendmail option to acheive and it is working fine. However custoemr wants to make body of email slightly dynamic. E.g dear customer in html file... (3 Replies)
Discussion started by: Harish7586
3 Replies
AD(1)                                                              Netatalk 2.2                                                              AD(1)

NAME
ad - Netatalk compatible UNIX file utility suite. SYNOPSIS
ad {ls | cp | mv | rm} [...] ad {-v | --version} DESCRIPTION
ad is a UNIX file utlity suite with Netatalk compatibity. AppleDouble files in .AppleDouble directories and the CNID databases are updated as appropiate. AVAILABLE COMMANDS
ad ls [-dRl [u]] {file|dir [...]} List files and directories. ad cp [-aipvf] {src_file} {dst_file} ad cp -R [-aipvf] {src_file|src_directory ...} {dst_directory} Copy files and directories. ad mv [-finv] {src_file} {dst_file} ad mv [-finv] {src_file|src_directory ...} {dst_directory} Move files and directories. ad rm [-Rv] {file|directory} ad -v|--version Show version. AD LS
List files and directories. Options: -d Directories are listed as plain files -R list subdirectories recursively -l Long output, list AFP info -u List UNIX info Long output description <unixinfo> <FinderFlags> <AFP Attributes> <Color> <Type> <Creator> <CNID from AppleDouble> <name> FinderFlags (valid for (f)iles and/or (d)irectories): d = On Desktop (f/d) e = Hidden extension (f/d) m = Shared (can run multiple times) (f) n = No INIT resources (f) i = Inited (f/d) c = Custom icon (f/d) t = Stationery (f) s = Name locked (f/d) b = Bundle (f/d) v = Invisible (f/d) a = Alias file (f/d) AFP Attributes: y = System (f/d) w = No write (f) p = Needs backup (f/d) r = No rename (f/d) l = No delete (f/d) o = No copy (f) Note: any letter appearing in uppercase means the flag is set but it's a directory for which the flag is not allowed. AD CP
Copy files and directories. In the first synopsis form, the cp utility copies the contents of the source_file to the target_file. In the second synopsis form, the contents of each named source_file is copied to the destination target_directory. The names of the files themselves are not changed. If cp detects an attempt to copy a file to itself, the copy will fail. Netatalk AFP volumes are detected by means of their ".AppleDesktop" directory which is located in their volume root. When a copy targetting an AFP volume is detected, its CNID database daemon is connected and all copies will also go through the CNID database. AppleDouble files are also copied and created as needed when the target is an AFP volume. Options: -a Archive mode. Same as -Rp. -f For each existing destination pathname, remove it and create a new file, without prompting for confirmation regardless of its permis- sions. (The -f option overrides any previous -i or -n options.) -i Cause cp to write a prompt to the standard error output before copying a file that would overwrite an existing file. If the response from the standard input begins with the character 'y' or 'Y', the file copy is attempted. (The -i option overrides any pre- vious -f or -n options.) -n Do not overwrite an existing file. (The -n option overrides any previous -f or -i options.) -p Cause cp to preserve the following attributes of each source file in the copy: modification time, access time, file flags, file mode, user ID, and group ID, as allowed by permissions. If the user ID and group ID cannot be preserved, no error message is displayed and the exit value is not altered. -R If source_file designates a directory, cp copies the directory and the entire subtree connected at that point.If the source_file ends in a /, the contents of the directory are copied rather than the directory itself. -v Cause cp to be verbose, showing files as they are copied. -x File system mount points are not traversed. AD MV
Move files and directories. Move files around within an AFP volume, updating the CNID database as needed. If either: o source or destination is not an AFP volume o source AFP volume != destination AFP volume the files are copied and removed from the source. Options: -f Do not prompt for confirmation before overwriting the destination path. (The -f option overrides any previous -i or -n options.) -i Cause mv to write a prompt to standard error before moving a file that would overwrite an existing file. If the response from the standard input begins with the character `y' or `Y', the move is attempted. (The -i option overrides any previous -f or -n options.) -n Do not overwrite an existing file. (The -n option overrides any previous -f or -i options.) -v Cause mv to be verbose, showing files after they are moved. AD RM
Remove files and directories. The rm utility attempts to remove the non-directory type files specified on the command line. If the files and directories reside on an AFP volume, the corresponding CNIDs are deleted from the volumes database. The options are as follows: -R Attempt to remove the file hierarchy rooted in each file argument. -v Be verbose when deleting files, showing them as they are removed. REPORTING BUGS
Report bugs to the Netatalk-devel list <netatalk-devel@lists.sourceforge.net>. SEE ALSO
dbd(1), apple_dump(1). Netatalk 2.2 02 Sep 2011 AD(1)
All times are GMT -4. The time now is 08:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy