You are most welcome to forum, hope you will enjoy learning here. echo $$ will be used to write PID of the current shell.
So tmp$$ is just a Temporary file created in above code, which is later renamed to actual file. Complete explanation is as follows.
Thanks,
R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
Hi,
I have a data file with following structure:
a|b|c|d|3|f1|f2|f3
a|b|c|d|5|f1|f2|f3|f4|f5
I want to change this data to:
a|b|c|d|3|f1;f2;f3
a|b|c|d|5|f1;f2;f3;f4;f5
Data in column 5 tells the number of following fields. All fields delimiter after the 5th column needs to be... (6 Replies)
I am trying to use sed to replace specific characters at a specific position in the file with a different value... can this be done?
Example:
File:
A0199999123
A0199999124
A0199999125
Need to replace 99999 in positions 3-7 with 88888.
Any help is appreciated. (5 Replies)
Hi,
I have file as below:
5 6 7
4 8 9
3 5 6
output needs to be another file with 4th column as $1+$2 and 5th column as $3+$4.
sample output file
5 6 7 11 18
4 8 9 12 21
3 5 6 8 14
Anybody have answer
Thanks in advance (3 Replies)
Greetings.
I don't have experience programing scripts. I need to insert a string in a specific position of another string on another file (last.cfg), for example:
File last.cfg before using script:
login_interval=1800
lcs.machinename=client04
File last.cfg after using script:... (4 Replies)
Hello experts,
I am new to this group and to 'SED' and 'AWK'. I have data (text file) with 5 columns (C_1-5) and 100s of lines (only 10 lines are shown below as an example). I have to find or select only the id numbers (C-1) of specific lines with '90' in the same line (of C_3) AND with '20' in... (6 Replies)
Hi all!
I need to change the final e every time when it is present in any word in column 1 to a; moreover, to change the final i again to a in any word in column 1, but just if word in column 2 begins with ha or si.
Here below you can see a sample of my data:
achwa ungeliachwa ungeli 1... (3 Replies)
Hi,
I made following configuration to create user directory:
# authconfig --enablemkhomedir --update
But the directory is created as permission 755, I'd like to modify the script to change directory access permission to 700, where is the script which copies /etc/skel to /home... (0 Replies)
Hello,
i need help with awk.
I have this file:
cat number
DirB port 67 er_enc_out 0 er_bad_os 0
DirB port 71 er_enc_out 56 er_bad_os 0
DirB port 74 er_enc_out 0 er_bad_os 0
DirB port 75 ... (4 Replies)
What is the proper syntax to add specific text to a column in a file? Both the input and output below are tab-delineated. What if there are multiple text/fields, such as /CP&/2 /CM&/3 /AA&/4 Thank you :).
sed 's/*/Index&/1' del.txt.hg19_multianno.txt > matrix.del.txt (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT ULTRIX
edit
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 Alsoawk(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)