10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Trying to use perl to output specific fields from all text files in a directory to one new file. Each text file on a new line. The below seems to work for one text file but not more. Thank you :).
perl -ne 's/^#//; @n = (6, 7, 8, 16); print if $. ~~ @n' *.txt > out.txt
format of all text... (2 Replies)
Discussion started by: cmccabe
2 Replies
2. Shell Programming and Scripting
Hi
I'm trying to comment out specific lines from /etc/fstab file, for simplicity I'm trying to use perl one liner but it errors out,
Below is the Perl oneliner I'm using,
perl -wlp -i -e 'BEGIN{$flag=0}if (!/root/) && (!/boot/) && (!/tmpfs/) ) {$flag =1;} elsif (/^$/) {$flag=0} if ($flag)... (2 Replies)
Discussion started by: mbak
2 Replies
3. Shell Programming and Scripting
Hi there,
I have an output from a command like this
# ypcat -k netgroup.byuser| grep steven
steven.* users_main,users_sysadmin,users_global,users_backup_team
and wanted to pull the 'users' netgroups returned into a perl array, that will look like this
users_main... (2 Replies)
Discussion started by: rethink
2 Replies
4. Shell Programming and Scripting
Hello,
Consider that i have many files that have the below format:
file1
900 7777
1000 5 6 23 nnnnnnnnnnnnnnnnnn
1100 kkkkkkk
file2
900 1989
1000 5 3 10 kkkdfdfdffd
1100 kkkkkkk
What i would like to do is on every file to search the line that starts with... (4 Replies)
Discussion started by: chriss_58
4 Replies
5. Shell Programming and Scripting
Hello,
I am trying to read from a file using PERL:confused, however i need to read specific portions of the file
the file goes like this
<Name 1
Hono
<Name 2
Jack
and so on
anyways i need to be able to write a program that ONLY opens the lines beginning with "<"? so it would... (2 Replies)
Discussion started by: UNDstudent
2 Replies
6. Shell Programming and Scripting
for below perl code, if without ?, will print test, otherwise will print null.
i know it is due to greedy perl regexp matching that eat out test by previous .*, i also know there should be a way to force perl to match if can match, can anyone help me to figure it out or lead me to the right... (6 Replies)
Discussion started by: summer_cherry
6 Replies
7. Shell Programming and Scripting
Alright,
I'm new to Perl so be gentle. Given the following script:
----
open(file, "<file.txt");
@lines = <file>;
close(file);
$var = print $lines;
----
So I'm printing line 18 of the file "file.txt". I now want the 5th column, minus the forward slash. The line looks like this:
... (2 Replies)
Discussion started by: wxornot
2 Replies
8. Shell Programming and Scripting
i want to split the input by a space and remove specific characters like full stop, comma...... etc. and then save each word in an array.
i got something below, but it didn't work. can anyone please help me?
Thank you
#!/usr/bin/perl -w
while (<>)
{
$line = <>;
@word = split(' ',... (6 Replies)
Discussion started by: mingming88
6 Replies
9. Shell Programming and Scripting
Can anyone tell me what could be the solution to following :
I have one .txt file which contains some "seed" information. This seed may appear multiple time in the file so what I want do is if this seed appears again in the file then that line should be removed.
Please provide the script code... (4 Replies)
Discussion started by: dipakg
4 Replies
10. UNIX for Advanced & Expert Users
Double question here ... Running on Debian Etch and Apache 2.0
1) Using mod_proxy and/or mod_proxy_http in apache 2.0.
The basics of using mod_proxy are pretty simple so long as you're using a static config. I'm trying to figure out how to do it dynamically - that is, allow the entry of a... (4 Replies)
Discussion started by: Halfwalker
4 Replies