10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi All,
i am trying to print required multiple columns dynamically from a fie.
But i am able to print only one column at a time.
i am new to shell script, please help me on this issue.
i am using below script
awk -v COLT=$1 '
NR==1 {
for (i=1; i<=NF; i++) {
... (2 Replies)
Discussion started by: balu1234
2 Replies
2. Shell Programming and Scripting
I've been struggling with this one for quite a while and cannot seem to find a solution for this find/replace scenario. Perhaps I'm getting rusty.
I have a file that contains a number of metrics (exactly 3 fields per line) from a few appliances that are collected in parallel. To identify the... (3 Replies)
Discussion started by: verdepollo
3 Replies
3. Shell Programming and Scripting
Hello,
I have to fish out some specific columns from a file based on the header value. I have the list of columns I need in a different file. I thought I could read in the list of headers I need,
# file with header names of required columns in required order
headers_file=$2
# read contents... (11 Replies)
Discussion started by: LMHmedchem
11 Replies
4. Shell Programming and Scripting
Hi,
I have two input files; file1 and file2. I compare them based on matched values in 1 column and print selected columns of the second file (file2). I got the result but the header was not printed. i want the header of file2 to be printed together with the result. Then i did below codes:-
... (3 Replies)
Discussion started by: redse171
3 Replies
5. UNIX for Dummies Questions & Answers
Hi ,
i will be getting 24 files for one day with a formate like 20131028_01 - 20131028_24 kind of ,i am trying to write a shell script to count the number of files and if the count is not equal to 24 print the missing files names
for A in `seq 0 23`; do ls *20131024_`printf "%02d" $A`*;... (3 Replies)
Discussion started by: vikatakavi
3 Replies
6. Shell Programming and Scripting
I would like to print the output beginning with a header from a seperate file like this:
awk 'BEGIN{FS="_";print ((getline < "header.txt")>0)} { if (! ($0 ~ /EL/ ) print }" input.txtWhat am i doing wrong? (4 Replies)
Discussion started by: sdf
4 Replies
7. Shell Programming and Scripting
Hi,
I am writting a script which will take all the files present in 2 directories. (the 2 directories have the same files with same name but some different content)
i need 2 compare 2 files and then copy the contents of file1 to file2. the contents which are missing in file1 and nothing from... (8 Replies)
Discussion started by: dazdseg
8 Replies
8. OS X (Apple)
Good morning! I am creating a program that uses raw sockets in C and need to call the "netpacket/packet.h" header file. However when I compile with gcc i get
I'm running os 10.5.8 with version gcc 4.0.1 and just update xcode last night which didn't seem to help. Any ideas will be greatly... (2 Replies)
Discussion started by: taiL
2 Replies
9. Shell Programming and Scripting
awk -F ";" '{if($10>80 && NR>1) print $0 }' txt_file_*
I am using this command to print the lines which has 10th field more then 80 and leaving the first line of the file which is the header.
But this is not working , the first line is is coming as output , please correct me .
thanks (2 Replies)
Discussion started by: madfox
2 Replies
10. Linux
say i have these many file in a directory named exam.
1)/exam/newfolder/link.txt.
2)/exam/newfolder1/
and i create a tar say exam.tar
well the problem is,
when i read the tar file i dont find any metadata about the directories,as you cannot create a tar containig empty directories.
on the... (2 Replies)
Discussion started by: Tanvirk
2 Replies