Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Compare two files line by line in bash Post 303035723 by Scrutinizer on Saturday 1st of June 2019 02:21:27 AM
Old 06-01-2019
Try something like this:

Code:
while 
  read newfile &&
  read oldfile <&3
do
  if [ "$oldfile" != "$newfile" ]; then
    if [ -f "$oldfile" ]; then
      echo mv -- "$oldfile" "$newfile"
    fi
  fi
done < file1 3<file2

Remove echo when you are done modifying and testing the code.
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

compare line in two files

Dear All i want to compate two diff file line by line. Kindly help me. file 1: 1;givi;01012000;wer 2;sss;02012000;rrr 3;ccc;03012000;ttt file 2: 0;uuu;01012000;lll 1;givi;01012000;wer 2;sss;02012000;rrr 3;ccc;03012000;ttt 5;givi;01012000;hhh Output1: comman line to both file... (3 Replies)
Discussion started by: jaydeep_sadaria
3 Replies

2. Shell Programming and Scripting

Compare multiple fields in file1 to file2 and print line and next line

Hello, I have two files that I need to compare and print out the line from file2 that has the first 6 fields matching the first 6 fields in file1. Complicating this are the following restrictions 1. file1 is only a few thousand lines at most and file2 is greater than 2 million 2. I need to... (7 Replies)
Discussion started by: gillesc_mac
7 Replies

3. Shell Programming and Scripting

Compare two text files line by line

Hi all I need help on comparing two texts files line by line and print the total number of lines matched. Any help is appreciated. Thanks in advance. (4 Replies)
Discussion started by: my_Perl
4 Replies

4. Shell Programming and Scripting

Compare two files line by line

Query: There are two files as below - /home/rgupta/input/file.txt.arch (source file) /home/rgupta/output/file.txt (destination file) Files details are attached for the reference. Scenario: File /home/rgupta/input/file.txt.arch picked up by an application xyz. Application xyz does... (2 Replies)
Discussion started by: ravigupta2u
2 Replies

5. Shell Programming and Scripting

how compare first line of two files

Hi, Unix Gurus: I have a requirement which need to compare the first line of two files. e.g; file1 123 abc def file2 123 abcdef defe I need compare first line: in two file: in this case, two file contain same value in first line (123) anybody can help me. Thanks in advance (2 Replies)
Discussion started by: ken002
2 Replies

6. Shell Programming and Scripting

How to compare two files line by line

Using diff to compare 2 files FILE1: AAA AAA AAA AAA AAA AAA FILE2: BBB BBB AAA AAA BBB BBB diff FILE1 FILE2 (3 Replies)
Discussion started by: yannsun
3 Replies

7. Shell Programming and Scripting

how to read the contents of two files line by line and compare the line by line?

Hi All, I'm trying to figure out which are the trusted-ips and which are not using a script file.. I have a file named 'ip-list.txt' which contains some ip addresses and another file named 'trusted-ip-list.txt' which also contains some ip addresses. I want to read a line from... (4 Replies)
Discussion started by: mjavalkar
4 Replies

8. Shell Programming and Scripting

Perl how to compare two pdf files line by line

Hi Experts, Would really appreciate if anyone can guide me how to compare two pdf files line by line and report the difference to another file. (3 Replies)
Discussion started by: prasanth_babu
3 Replies

9. Shell Programming and Scripting

Compare fields in two files line by line

I am new to awk scripting. I want to do a field by word (field) comparison of two files File1.txt and File2.txt. The files contain a list of | (pipe) separated field. **File 1: ------------------- aaa|bbb|ccc|eee|fff lll|mmm|nnn|ooo|ppp rrr|sss|ttt|uuu|vvv** File 2: ... (7 Replies)
Discussion started by: dhruvmohan
7 Replies

10. Shell Programming and Scripting

How to read file line by line and compare subset of 1st line with 2nd?

Hi all, I have a log file say Test.log that gets updated continuously and it has data in pipe separated format. A sample log file would look like: <date1>|<data1>|<url1>|<result1> <date2>|<data2>|<url2>|<result2> <date3>|<data3>|<url3>|<result3> <date4>|<data4>|<url4>|<result4> What I... (3 Replies)
Discussion started by: pat_pramod
3 Replies
LIBBASH(7)							  libbash Manual							LIBBASH(7)

NAME
libbash -- A bash shared libraries package. DESCRIPTION
libbash is a package that enables bash dynamic-like shared libraries. Actually its a tool for managing bash scripts whose functions you may want to load and use in scripts of your own. It contains a 'dynamic loader' for the shared libraries ( ldbash(1)), a configuration tool (ldbashconfig(8)), and some libraries. Using ldbash(1) you are able to load loadable bash libraries, such as getopts(1) and hashstash(1). A bash shared library that can be loaded using ldbash(1) must answer 4 requirments: 1. It must be installed in $LIBBASH_PREFIX/lib/bash (default is /usr/lib/bash). 2. It must contain a line that begins with '#EXPORT='. That line will contain (after the '=') a list of functions that the library exports. I.e. all the function that will be usable after loading that library will be listed in that line. 3. It must contain a line that begins with '#REQUIRE='. That line will contain (after the '=') a list of bash libraries that are required for our library. I.e. every bash library that is in use in our bash library must be listed there. 4. The library must be listed (For more information, see ldbashconfig(8)). Basic guidelines for writing library of your own: 1. Be aware, that your library will be actually sourced. So, basically, it should contain (i.e define) only functions. 2. Try to declare all variables intended for internal use as local. 3. Global variables and functions that are intended for internal use (i.e are not defined in '#EXPORT=') should begin with: __<library_name>_ For example, internal function myfoosort of hashstash library should be named as __hashstash_myfoosort This helps to avoid conflicts in global name space when using libraries that come from different vendors. 4. See html manual for full version of this guide. AUTHORS
Hai Zaar <haizaar@haizaar.com> Gil Ran <ril@ran4.net> SEE ALSO
ldbash(1), ldbashconfig(8), getopts(1), hashstash(1) colors(1) messages(1) urlcoding(1) locks(1) Linux Epoch Linux
All times are GMT -4. The time now is 12:25 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy