04-21-2009
deleting multiple accourances of a pattern from a file
I have a .sh file with the following contents:
a
b
c
a
a
b
d
c
i want to delete the multiple occurances and keep one. say there are 3 a's in the file. I want to delete 2 of them and just keep 1 occurance.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I have a very big file of 5gb size and there are about 50 million records in there. I have to delete the records based on recrord number that I know fromoutside with out opening the file. The record numbers are very random like 5000678, 7890005 etc.
Can somebody let me know how i can... (5 Replies)
Discussion started by: dsravan
5 Replies
2. UNIX for Dummies Questions & Answers
Hi,
I need a script where I have delete all the files of type abc*.* from the directory /lmn/opq (passed as parameter to script)
But I need to check if there is file of type abc*.* existing in the directory or not before I use the
rm abc*.*
command.
Thanks (1 Reply)
Discussion started by: dsrookie
1 Replies
3. Shell Programming and Scripting
Hi,
I have 10 different strings. I have to delete the whole line matching with any one string.
I can use sed like below
sed '/$keyword1/d' fileList.txt > temp_fileList.txt
sed '/$keyword2/d' temp_fileList.txt > temp_fileList1.txt
.
.
.
Here is the problem i do not have fixed number... (9 Replies)
Discussion started by: shekhar_v4
9 Replies
4. Shell Programming and Scripting
say i have a file with the following contents
0x20
0x20
0xc23886
> 0xc12354
> 0xc567555555
i want to delete "> " pattern and keep the rest of the file (6 Replies)
Discussion started by: lassimanji
6 Replies
5. Shell Programming and Scripting
Hi All,
Please can someone assist in the script I have made that searches a pattern in a file and delete the whole line containing the pattern.
#!bin/sh
# The pattern that user want to add to the files
echo "Enter the pattern of the redirect"
read value
# check if the user has... (1 Reply)
Discussion started by: Shazin
1 Replies
6. Shell Programming and Scripting
I've got a longish log file with content such as
Uplink traffic:
Downlink traffic:
I want to parse the log file and remove any line that contains the string "Uplink traffic:" at the beginning of the line, but only if the line following it beginnings with the string "Downlink traffic:" (in... (7 Replies)
Discussion started by: Yorkie99
7 Replies
7. Shell Programming and Scripting
In Unix, how do I delete lines in a file that match a particular pattern without opening it. File contents are
foo line1
misc
whatever
foo line 2
i want to delete all lines that have the pattern "foo" without opening the file. File should eventually contain
misc
whatever (1 Reply)
Discussion started by: osbourneric
1 Replies
8. UNIX for Dummies Questions & Answers
Hello all,
I'm using the Bash shell on Solaris 8.
Please can someone tell me how I can delete multiple lines in the hosts file?
I have a list of hosts that I want to quickly delete in the hosts file, but I'm looking for a quicker way than using VI to delete the lines one by one.
Regards,... (4 Replies)
Discussion started by: wthomas
4 Replies
9. Shell Programming and Scripting
Hello ,
I have comma delimited file with over 20 fileds that i need to do some validations on. I have to check if certain fields are null and then write the line containing the null field into a new file and then delete the line from the current file.
Can someone tell me how i could go... (2 Replies)
Discussion started by: goddevil
2 Replies
10. UNIX for Dummies Questions & Answers
Hi
I have a file:
r58778.3|SOURCES={KEY=f665931a...,fw,221-705}|ERRORS={16_1:T,30_1:T,56_1:C,57_1:T,59_1:A,101_1:A,115:-,158_1:C,186_1:A,204:-,271_1:T,305:-,350_1:C,368_1:G,442_1:C,472_1:G,477_1:A}|SOURCE_1="Contig_1092402550638"(f665931a359e36cea0976db191ff60ff09cc816e)
I want to retain... (15 Replies)
Discussion started by: Alyaa
15 Replies
LEARN ABOUT HPUX
delete_directory
delete directory(1m) delete directory(1m)
NAME
delete directory - Deletes a directory
SYNOPSIS
cdscp delete directory directory-name
ARGUMENTS
The full name of the directory.
DESCRIPTION
The delete directory command deletes a directory. The directory cannot contain any object entries, soft links, or child pointers. The
master replica must be the only remaining replica in the cell. Use the delete replica command if you need to remove read-only replicas.
Privilege Required
You must have delete permission to the directory and write permission to the clearinghouse that stores the master replica of the directory.
The server principal needs administer permission to the parent directory or delete permission to the child pointer that points to the
directory you intend to delete.
NOTE
This command is replaced at Revision 1.1 by the dcecp command and may not be provided in future releases of DCE.
EXAMPLE
The following command deletes the directory /.:/eng from the namespace: cdscp> delete directory /.:/eng
RELATED INFORMATION
Commands: create directory(1m), delete replica(1m), list directory(1m), set directory(1m), set directory to skulk(1m), show directory(1m)
delete directory(1m)