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Shell Programming and Scripting

Help needed ....

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Top Forums Shell Programming and Scripting Help needed ....
# 1  
Old 04-02-2008
Bug Help needed ....
Hi...
I have a folder /home/data ;where some files are present.
aaa_asas.txt
bbb_xxx.txt
ccc_xsxas.txt
ddd_sa2esa.txt
------
Also I have a file which is as follows.(/home/file1)
cat /home/file1
aaa you
bbb are
ccc very
ddd good
--------
now I want to rename all the files in the folder /home/data as below
you_asas.txt
are_xxx.txt
very_xsxas.txt
good_sa2esa.txt

In simple terms the script need to read each line (eg:- aaa) and match the pattern in the folder and if it exists it should rename with second column name (eg:- you)
can any body help me plzzzz.i m very new to scripting.. :-(
# 2  
Old 04-02-2008
Pleasehelp me Smilie Smilie Smilie Smilie
# 3  
Old 04-02-2008
Code:
cd /home/data

ls *.txt | awk '{
   if (NR != FNR) {
      split($0, s, "_")
      if (s[1] in t)
         "mv "$0" "t[s[1]]"_"s[2] | getline
   } else
       t[$1] = $2
}' /home/file1 -

# 4  
Old 04-02-2008
Thank you very much ...(one moer query...)
It works perfectly ...
however...
what should i do if my file name (in /home/data) is like the following.
qwerty_asdfg_0010_12.txt

and the home/file is
qwerty Thankyou

so that i will get the result as Thankyou_asdfg_0010_12.txt
# 5  
Old 04-02-2008
newbee1,

It's against our rules to bump up questions, please read the:

https://www.unix.com/unix-dummies-que...om-forums.html

Regards
# 6  
Old 04-02-2008
Code:
cd /home/data

ls *.txt | awk '{
    f = $0
    if (NR != FNR) {
        split(f, s, /_.*/)
        sub(s[1], "", f)
        if (s[1] in t)
            system("echo mv "$0" "t[s[1]]""f)
     } else
         t[$1] = $2
}' file -

# 7  
Old 04-02-2008
Remove the echo from the awk system() function before executing or it will simply echo the command (good...if you want to see what the final result would be like).

Code:
cd /home/data

ls *.txt | awk '{
    f = $0
    if (NR != FNR) {
        split(f, s, /_.*/)
        sub(s[1], "", f)
        if (s[1] in t)
            system("mv "$0" "t[s[1]]""f)
    } else
        t[$1] = $2
}' file -
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