Override last line in UNIX

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Override last line in UNIX
# 1  
Old 02-24-2014
Override last line in UNIX

Hello ,

I have to override the last line of a text file in unix
I know one way is to delete and insert however I am looking for a one liner.

Could anyone help me to write it?

below is the code I have come up with

sed '$d' /ParmFiles/test2_parm.dat>/ParmFiles/temp_pra.dat;
cat /ParmFiles/temp_pra.dat > /ParmFiles/test2_parm.dat;
echo '$$'"filename=`ls -lrt /SrcFiles/*_Matched*.csv| head -1 | nawk '{print $9}'`">> //ParmFiles/test2_parm.dat;
rm temp_pra.dat;

However I am executing the code from different application and getting control M error so need a one liner
# 2  
Old 02-24-2014
You can try:
sed -e "\$s/.*/\$\$filename=`ls -lrt /SrcFiles/*_Matched*.csv| head -1 | nawk '{print $9}'`/" /ParmFiles/test2_parm.dat>/ParmFiles/temp_pra.dat

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to override Classpath?

Hi, When I login to my HP-UX and fire the "set" command I see that the weblogic 9.2 classpath is already set. However, I wish to override the classpath to weblogic version 10.3 I have a script call setWLSEnv.sh that has the desired classpath. Thus, in my unix script i write .... (6 Replies)
Discussion started by: mohtashims
6 Replies

2. UNIX for Dummies Questions & Answers

Override options of rm command

How can i override options of rm command ?? and how can i implement my own options when we delete file using rm commad it will not delete file it has to move some folder....plz suggest some solution. (10 Replies)
Discussion started by: arun508.gatike
10 Replies

3. Shell Programming and Scripting

override protection 644 (yes/no)?

Hi pls help me out to short out this problem rm PAB113_011.out rm: PAB113_011.out: override protection 644 (yes/no)? n If i give y it remove the file. But i added the rm command as a part of ksh file and i tried to remove the file. Its not removing and the the file prompting as... (9 Replies)
Discussion started by: sri_aue
9 Replies

4. UNIX for Dummies Questions & Answers

Can you override root shell?

Hi, I'm trying to figure out the logic of my user shell and root shell :confused: This might be best illustrated with an example. If I log into the linux host I'm using and run the following: -bash-3.2$ which python /usr/local/bin/python I now run sudo bash to become root and run the... (2 Replies)
Discussion started by: cuchulainn
2 Replies

5. UNIX for Dummies Questions & Answers

override the system date-timestamp on the Unix servers

I am looking for a tool that allows us to override the system date-timestamp on the Unix servers so that we can perform regression tests using the same set of scripts and data. CDS is an example of a system where the logic is very date/time dependent. It would make regression testing much easier... (5 Replies)
Discussion started by: DavidH
5 Replies

6. Programming

How to override my profile

I would like to override the default profile which is loaded when the system starts or When I run a program so that profile should get loaded in the settings. Is there any system call to do so. . (0 Replies)
Discussion started by: mobile01
0 Replies

7. Programming

override the function in C

hi , greetings , I have one doubt reg the C functions . I have a program sample.c , in which i have function name scanf , which reads a a variable and prints the variable inside the function . this scanf is nothing to do with C library function scanf , but i would like to use only user... (1 Reply)
Discussion started by: naren_chella
1 Replies

8. AIX

date override

When the aix date function is called by a routine, is the date function 'aware' of the name of the routine that is calling it, such that if we had the source code of the date function, we could modify it so that it provides a date to the caller depending upon the identity of the calling routine.... (1 Reply)
Discussion started by: gerry shacter
1 Replies

9. IP Networking


Hi My computer of late started misbehaving. Whenever I switch it on It say Override and then it takes long to boot. Surprising is that it opens excel automatic. What could be that? (1 Reply)
Discussion started by: Mulo
1 Replies

10. UNIX for Dummies Questions & Answers

Override protection.....

I am having this problem......when I run this script: print -n "Enter file name to be deleted: " read answer if then rm $name else echo "No such file with the name: $name exists" fi I was trying to test my script for errors, and basically when the user had files with the rights: 400,... (1 Reply)
Discussion started by: Makaveli.2003
1 Replies
Login or Register to Ask a Question