05-10-2019
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10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Discussion started by: Lokesha
4 Replies
2. Solaris
Hi,
I've noticed that the permissions output from "ls -l" under SunOS differs from Linux in that after the "rwxrwxrwx" field, there is an additional "+" character that may or may not be there. What is the significance of this character?
Thanks,
Suan (6 Replies)
Discussion started by: sayeo
6 Replies
3. Shell Programming and Scripting
I have to append character "0" for lines between 1 and 40 in a file.
I tried the following code.
:s/^0,1,40/g
Input:
Output: (2 Replies)
Discussion started by: pinnacle
2 Replies
4. Shell Programming and Scripting
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
Discussion started by: shis100
7 Replies
5. Post Here to Contact Site Administrators and Moderators
Majority of the questions are pertaining file/string parsing w.r.t
sed
or
awk
It would be nice to have these two as their own sub category under shell-programming-scripting which can avoid lot of duplicate posts. (1 Reply)
Discussion started by: jville
1 Replies
6. Programming
As this function returns the address of the string corressponding to the errno value provided to it. Can someone please let me know where, in the memory, it could be (on freeBSD).
The MAN page tells under the BUG section that "For unknown error numbers, the strerror() function will return its... (5 Replies)
Discussion started by: Praveen_218
5 Replies
7. Shell Programming and Scripting
I have a bunch of random character lines like ABCEDFG. I want to find all lines with "A" and then change any "E" to "X" in the same line. ALL lines with "A" will have an "X" somewhere in it. I have tried sed awk and vi editor. I get close, not quite there. I know someone has already solved this... (10 Replies)
Discussion started by: nightwatchrenba
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8. UNIX for Dummies Questions & Answers
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Discussion started by: asjaiswal
2 Replies
9. Shell Programming and Scripting
Okay, so I have a rather large text file and will have to process many more and this will save me hours of work.
I'm not very good at scripting, so bear with me please.
Working on Linux RHEL
I've been able to filter and edit and clean up using sed, but I have a problem with moving lines.
... (9 Replies)
Discussion started by: rex007can
9 Replies
10. Shell Programming and Scripting
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 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)