10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi
This is my first post and I'm just a beginner. So please be nice to me.
I have a couple of html files where a pattern beginning with "http://www.site.com" and ending with "/resource.dat" is present on every 241st line. How do I extract this to a new text file?
I have tried sed -n 241,241p... (13 Replies)
Discussion started by: dejavo
13 Replies
2. Shell Programming and Scripting
Hello All,
I have following file contents
cat file
#line=aaaaaa
#line=bbbbbb
#line=cccccc
#line=dddddd
line=eeeeee
#comment=11111
#comment=22222
#comment=33333
#comment=44444
comment=55555
Testing script
Good Luck!
I would like to comment line line=eeeeee and insert a new line... (19 Replies)
Discussion started by: manishdivs
19 Replies
3. Shell Programming and Scripting
Im attempting to insert the contents of File1 at a specific point of File2.
File1
AD004 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 1
File2
AA001 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 1
AB002 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 1
AC003 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 1
Result
AA001 0 1 0 0 1 0 1 0 0 1 0 1 0 1 0 1... (13 Replies)
Discussion started by: ncwxpanther
13 Replies
4. Shell Programming and Scripting
I use zentyal for my server admin, which is great but zentyal auto-generates config file on boot and hence overwrites any changes made directly to config files. In order to allow multiple user access to a MS ACCESS database, I need to customise the smb.conf file and add the following line to the... (9 Replies)
Discussion started by: barrydocks
9 Replies
5. Linux
Hello! All,
Could you please tell me how to get a specific line number from a text file?
For example below,
ABC
DEF ---> Get this line number, return to an variable
GHI
My OS is Linux.
Thank you so much for your help in advance! (3 Replies)
Discussion started by: barryxian
3 Replies
6. UNIX for Dummies Questions & Answers
Hi all, I have a script which uses a basic line to add text into another file e.g.
grep -i test * >> test.txt
Is there a way I can get the output of the grep to output to a specific line in the text.txt for example output above the line starting "Bottom line..." (6 Replies)
Discussion started by: JayC89
6 Replies
7. Shell Programming and Scripting
Hello,
I have a problem which is giving me headache for days, can some please help. Please see code and text fiel below. Please see text in red for the problem I am facing
# Program gets an input x from user
while read line ; do
echo... (4 Replies)
Discussion started by: jermaine4ever
4 Replies
8. Shell Programming and Scripting
Given a text file, how do you add a line of text after a specific line number? I believe I would want to use "sed" but I am unsure of the syntax. Thank you.
Mike (5 Replies)
Discussion started by: msb65
5 Replies
9. Shell Programming and Scripting
Hi,
I wanted to add specific text to each row in a text file containing three rows. Example:
0 8 7 6 5 5
7 8 9 0 7 9
7 8 9 0 1 2
And I want to add a 21 at the beginning of the first row, and blank spaces at the beginning of the second two rows. To get this:
21 0 8 7 6 5 5
7 8... (4 Replies)
Discussion started by: hertingm
4 Replies
10. Programming
hi everybody!
i need to read a specific line from a text file using C. can any one suggest how to do it.
i m aware abt fread(), fwrite(), fseek()... but using these allows the pointer to be moved 1 character at a time. Is there a way i could jump directly to a line if i know the line number?... (4 Replies)
Discussion started by: mridula
4 Replies
ex(1) General Commands Manual ex(1)
Name
ex, edit - text editor
Syntax
ex [ - ] [ -v ] [ -x ] [ -t tag ] [ -r ] [ +command ] [ -l ] name...
edit [ ex options ]
Description
The editor is the root of a family of editors: and The editor is a superset of with the most notable extension being a display-editing
facility. Display-based editing is the focus of
The name argument indicates the files to be edited.
Options
- Suppresses all interactive-user feedback. This option is useful in processing editor scripts in command files.
-v Equivalent to using rather than
-t Equivalent to an initial tag command, that is, editing the file containing the tag and positioning the editor at its definition.
-r Used to recover after an editor or system crash. It recovers by retrieving the last saved version of the named file. If no file is
specified, it displays a list of saved files.
-R Sets the read-only option at the start.
+command
Indicates that the editor should begin by executing the specified command. If the command is omitted, it defaults to $, positioning
the editor at the last line of the first file, initially. Other useful commands here are scanning patterns of the form +/pattern or
line numbers.
-l Sets up for LISP. That is, it sets the showmatch and lisp options. The -x option is available only if the Encryption layered product
is installed.
-x Causes to prompt for a key. The key is used to encrypt and decrypt the contents of the file. If the file contents have been encrypted
with one key, you must use the same key to decrypt them.
Restrictions
The command causes all marks to be lost on lines changed and then restored if the marked lines were changed.
The command does not clear the buffer modified condition.
The z command prints a number of logical rather than physical lines. More than a screenful of output may result if long lines are present.
File input/output errors do not print a name if the command line minus sign (-) option is used.
There is no easy way to do a single scan ignoring case.
The editor does not warn you if you place text in named buffers and do not use it before exiting the editor.
Null characters are discarded from input files, and cannot appear in output files.
Files
/usr/lib/ex?.?recover recover command
/usr/lib/ex?.?preserve preserve command
/etc/termcap terminal capabilities
~/.exrc editor startup file
/tmp/Exnnnnn editor temporary
/tmp/Rxnnnnn named buffer temporary
/usr/preserve preservation directory
See Also
awk(1), ed(1), grep(1), sed(1), vi(1), termcap(5), environ(7)
"Edit: A Tutorial" and the "Ex Reference Manual" in the
Supplementary Documents, Volume 1: General User
ex(1)