Register
It is currently Sun Dec 21, 2014 4:59 am

Shell Script to find common lines and replace next line


All times are UTC - 6 hours


Post new topic Reply to topic  [ 3 posts ] 
Author Message
 PostPosted: Tue Feb 11, 2014 11:14 am   

Joined: Tue Feb 11, 2014 11:12 am
Posts: 3
I want to find common line in two files and replace the next line of first file with the next line of second file. (sed,awk,perl,bash any solution is welcomed ) Case Ignored. Multiple Occurrence of same line.

File 1:
Code:
         hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr ""
kgcksdcgfkdsb
msgid ""
hsdvchgsdvc
msgstr ""
dhshfjksdfhmd
msgid "Vidya"
msgstr ""
sdjhcbnd
dcndnv
cfnkdndvrknvkf
dfkvrnkdfnk
snfvrkng
msgid "Rome"
msgstr ""
wdbhkjbcfj
#dmcdmf
f,nvdf,

fvnfnvk
vfmf,mv
vfn

msgid "vid"
msgstr ""
dmcbdmbcvmfbvmkhsdk

file 2:
Code:
  dfhkvgjbfrvkf 
msgid "Rome"
msgstr "new bie"
sdbsjbcdcbwoido
fjcdcvnm
msgid "vidya"
msgstr "expert"
dvnjfkdvhnkfvnknsbdjh


msgid "vid"
msgstr "newton"
dfenfjdbrfjbvlfnvl
dcnkncvkdfvknfv
fcndkbvknfkv
vfdnkvnfknbvkfn

Later File 1 should be:
Code:
          hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr "new bie"
kgcksdcgfkdsb
msgid ""
hsdvchgsdvc
msgstr ""
dhshfjksdfhmd
msgid "Vidya"
msgstr "expert"
sdjhcbnd
dcndnv
cfnkdndvrknvkf
dfkvrnkdfnk
snfvrkng
msgid "Rome"
msgstr "new bie"
wdbhkjbcfj
#dmcdmf
f,nvdf,

fvnfnvk
vfmf,mv
vfn

msgid "vid"
msgstr "newton"
dmcbdmbcvmfbvmkhsdk


Top
 Profile  
 PostPosted: Tue Feb 11, 2014 7:42 pm   

Joined: Tue Feb 11, 2014 11:12 am
Posts: 3
awk 'NF{i=tolower($0)} NR==FNR{A[p]=$0; p=i; next} i in A{getline x; $0=$0 ORS A[i]}1' file2 file1
works fine for above file..but I am facing problem if both file contains almost similar contents,eg:
file1:
Code:
         hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr ""
kgcksdcgfkdsb
msgid ""
hsdvchgsdvc
msgstr ""
dhshfjksdfhmd
msgid "Vidya"
msgstr ""
sdjhcbnd
dcndnv
cfnkdndvrknvkf
dfkvrnkdfnk
snfvrkng
msgid "Rome"
msgstr ""
wdbhkjbcfj
#dmcdmf
f,nvdf,

fvnfnvk
vfmf,mv
vfn

msgid "vid"
msgstr ""
dmcbdmbcvmfbvmkhsdk

file2:
Code:
         hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr "new bie"
sdbsjbcdcbwoido
kgcksdcgfkdsb
msgid ""
hsdvchgsdvc
msgstr ""
dhshfjksdfhmd
msgid "vidya"
msgstr "expert"
sdjhcbnd
dcndnv
cfnkdndvrknvkf
dfkvrnkdfnk
snfvrkng
msgid "Rome"
msgstr "new bie"
sdbsjbcdcbwoido
wdbhkjbcfj
#dmcdmf
f,nvdf,

fvnfnvk
dvnjfkdvhnkfvnknsbdjh


msgid "vid"
msgstr "newton"
dfenfjdbrfjbvlfnvl
dmcbdmbcvmfbvmkhsdk

after exection..file1 should be:
Code:
         hgacdavd
sndm,ACNMSDC
msgid "Rome"
msgstr "new bie"
kgcksdcgfkdsb
msgid ""
hsdvchgsdvc
msgstr ""
dhshfjksdfhmd
msgid "Vidya"
msgstr "expert"
sdjhcbnd
dcndnv
cfnkdndvrknvkf
dfkvrnkdfnk
snfvrkng
msgid "Rome"
msgstr "new bie"
wdbhkjbcfj
#dmcdmf
f,nvdf,

fvnfnvk
vfmf,mv
vfn

msgid "vid"
msgstr "newton"
dmcbdmbcvmfbvmkhsdk


Top
 Profile  
 PostPosted: Wed Feb 12, 2014 10:28 am   

Joined: Tue Feb 11, 2014 11:12 am
Posts: 3
Code:
Search msgstr "" pattern in file1
       take its previous line, find this line in file2
if found then replace the next line of file1 with next line of file2


Thats the only thing i want to do...for all those msgstr with null value,i want to search its relevant value from file2 and replace the null with the value.
Please provide me implementation logic.


Top
 Profile  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron


BashScripts | Promote Your Page Too
Powered by phpBB © 2011 phpBB Group
© 2003 - 2011 USA LINUX USERS GROUP