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File Parsing

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# 1  
Old 03-23-2016
File Parsing
Hi Gurus,

i have files like this and i want to rename it.

Code:
server1_0_Log0000597500
server1_0_Log0000597501
server1_0_Log0000597502
server1_0_Log0000597503
server1_0_Log0000597504
server1_0_Log0000597505
server1_0_Log0000597506
server1_0_Log0000597507
server1_0_Log0000597508
server1_0_Log0000597509
server1_0_Log0000597510

output should be like this:
Code:
mv server1_0_Log0000597500	 server2_0_Log0000597500
mv server1_0_Log0000597501	 server2_0_Log0000597501
mv server1_0_Log0000597502	 server2_0_Log0000597502
mv server1_0_Log0000597503	 server2_0_Log0000597503
mv server1_0_Log0000597504	 server2_0_Log0000597504
mv server1_0_Log0000597505	 server2_0_Log0000597505
mv server1_0_Log0000597506	 server2_0_Log0000597506
mv server1_0_Log0000597507	 server2_0_Log0000597507
mv server1_0_Log0000597508	 server2_0_Log0000597508
mv server1_0_Log0000597509	 server2_0_Log0000597509
mv server1_0_Log0000597510	 server2_0_Log0000597510



can you please help be on a script to do it?

thanks
Moderator's Comments:
Mod Comment Please use CODE tags (as required by forum rules) when displaying sample input, sample output, and code segments.

Continued refusal to properly format you posts may result in you being banned from this site.
Last edited by Don Cragun; 03-23-2016 at 08:57 PM.. Reason: Add CODE tags again.
# 2  
Old 03-23-2016
What operating system are you using?

What shell are you using?

What have you tried to solve this problem?
# 3  
Old 03-24-2016
Hi fedora132010,

Assuming that you have a file.list with either the full path or you are executing the following command in the directory where these files exist.

Code:
perl -MFile::Copy=move -nle '$old = $_; s/server1/server2/ and move $old, $_' file.list

# 4  
Old 03-24-2016
Here is bash script to move those files and rename them

Code:
for i in $(ls); do mv $i ${i/${i:0:7}/server2}; done

It replaces the string between the 0th and the 7th character with "server2".
# 5  
Old 03-24-2016
Hi.

And a laundry list of items to consider:
Code:
Rename multiple files, groups of files
        1) rename -- Debian version and RedHat version differ, q.v.
           (try package util-linux:
           http://en.wikipedia.org/wiki/Util-linux)

        2) ren -- RedHat relatives

        3) renameutils -- package contains qmv, imv, icp, qcp, and deurlname

        4) mved -- (circa 2006; good as of 2015.05), perl
           http://raf.org/mved/
           (An earlier shell version may be available.)

        5) rename -- perl builtin library routine (DIY)

        6) mmv -- move/rename/copy/append/link multiple files by wildcard patterns

        7) gprename - batch rename using a GUI

        8) krename - batch rename using a GUI

Best wishes ... cheers, drl
# 6  
Old 03-24-2016
Quote:
Originally Posted by nemesis911
Here is bash script to move those files and rename them

Code:
for i in $(ls); do mv $i ${i/${i:0:7}/server2}; done

It replaces the string between the 0th and the 7th character with "server2".
That is a very dangerous suggestion. Note that if a directory contains files such as:
Code:
-rw-r--r--  1 dwc  staff  1082 Mar 23 21:11 _x.txt
-rw-r--r--  1 dwc  staff  1099 Mar 24 10:09 out
-rw-r--r--  1 dwc  staff  2321 Mar 23 21:29 problem
-rwxr-xr-x  1 dwc  staff   806 Mar 24 10:09 tester
-rw-r--r--  1 dec  staff  1082 Mar 24 10:10 x.txt

in addition to files with names starting with the string server1, it will execute commands like:
Code:
mv _x.txt server2
mv out server2
mv problem server2
mv tester server2
mv x.txt server2

throwing away the contents of 4 our of 5 of those files.

A much safer (and, since there is no need to invoke ls, faster) way to do this would be:
Code:
for i in server1*; do printf '%s %s %s\n' mv "$i" "${i/1/2}"; done

to verify that it is producing the mv commands you want and then rerun it with the printf and its format string shown in red removed after you have verified that it will be processing the files you want it to move correctly.
# 7  
Old 03-25-2016
Code:
for i in server1*
do 
     [ "$i" = "server1*" ] && continue # there wasn't any files
     # remove echo if looks good
      echo mv "$i" "${i/server1/server2}"
done

Last edited by kshji; 03-26-2016 at 05:14 AM.. Reason: Mistake, sorrry Don
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