10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I have multiple files of same format and I want to delete the lines starting with # and The from all of them
I am using
egrep -v '^(#|$)'
for # but unable to do for both # and The
Please guide
Thanks (12 Replies)
Discussion started by: bioinfo
12 Replies
2. Shell Programming and Scripting
Hello, im using ex to manipulate some text. Im trying to delete all the lines except those on which a certain regex can be found.
the important part of the script:
ex temp << 'HERE'
g/regex/p
HERE
this command prints the lines I want to end up with, but it doesnt delete the others.... (2 Replies)
Discussion started by: drareeg
2 Replies
3. Shell Programming and Scripting
This is what I would like to accomplish, I have an input file (file A) that consist of thousands of sequence elements with the same number of characters (length), each headed by a free text header starting with the chevron ‘>' character followed by the ID (all different IDs with different lenghts)... (9 Replies)
Discussion started by: Xterra
9 Replies
4. UNIX for Dummies Questions & Answers
In my command prompt I did:
sed 's/\://' mytextfile > newtextfile
But it only deleted the first instance of : in each line when some lines have multiple : appearing in each one. How can I delete all the : from the entire file? (1 Reply)
Discussion started by: guitarscn
1 Replies
5. Shell Programming and Scripting
hi all,
i have got a scenario in which i need to delete all the lines that ends with file names.
e.g.
input can be
cms/images/services_icons/callback.png
cms/cms/images/services_icons/sync.php
cms/cms/images/services_icons
and output should be
cms/cms/images/services_icons
... (13 Replies)
Discussion started by: kashifv
13 Replies
6. Shell Programming and Scripting
Hi All,
I have a big log file i want to delete all characters (between 350th to 450th characters) starting at 350th character position to 450th character position.
please advice or sample code. (6 Replies)
Discussion started by: rajeshorpu
6 Replies
7. Shell Programming and Scripting
Hi I have a file that looks like this:
arg1 ert
arg_7 ert
arg_9 ert
ban ert
Basically what I want to do is delete the _# ending. So the output will look like this:
arg1 ert
arg ert
arg ert
ban ert
thanks (5 Replies)
Discussion started by: kylle345
5 Replies
8. Shell Programming and Scripting
Hi I am having problems deleting a character
Basically I want to recognize lines with > and then delete a character that is seperated by a space. Here is an example of how the file looks like.
>chr86 86
Heres what I want it to look like:
>chr86
thanks
Phil (2 Replies)
Discussion started by: phil_heath
2 Replies
9. UNIX for Advanced & Expert Users
Hi, I've got a file where in the middle of the record is a $ end of line character, visible only when I open the file in vi and do :set list. How to I get rid of the character in the middle and keep it at the end. The middle $ character always appears after SW, so that can be used to tag it.... (3 Replies)
Discussion started by: bwrynz1
3 Replies
10. UNIX for Dummies Questions & Answers
I'm having problems deleting a file with a special character and I'm hoping that somebody here can help. The file "-osample1.c" will not remove from my directory. Here is an example of what happens. Any ideas would be appreciated.
> ls *sample1*
ls: illegal option -- .
usage: ls... (2 Replies)
Discussion started by: hart1165
2 Replies