How do I assign output of a command to a variable without expanding it?
I have tried every combination of quoting I can think of including literal quotes in the command and user agent variable and still can't get it to work (or it breaks Lynx because Lynx tolorates spaces in the useragent but expands it if quoted!)
Mike
"Is there any substituation of last command or script syntax which can be used as a user. As far I know the "last" command is being used to display information about previous logins. A member of adm group or the user adm can execute it only.
Thanks in advance for your usual help.
Ghazi (6 Replies)
Hi.. Everyone...
Kindly consider following :
login as: root
Using keyboard-interactive authentication.
Password:
Last login: Mon Nov 3 19:30:50 2008 from xxxxxxxxxxx
Sun Microsystems Inc. SunOS 5.10 Generic January 2005
You have new mail.
Sourcing //.profile-EIS.....
#
#
... (3 Replies)
Hi,
What is the actual difference between these two? Why the following code works for process substitution and fails for command substitution?
while IFS= read -r line; do echo $line; done < <(cat file)executes successfully and display the contents of the file
But,
while IFS='\n' read -r... (3 Replies)
I know this script is crummy, but I was just messing around.. how do I get sed's insert command to allow variable expansion to show the filename?
#!/bin/bash
filename=`echo $0`
/usr/bin/sed '/#include/ {
i\
the filename is `$filename`
}' $1
exit 0 (8 Replies)
Hey, guys!
Trying to research this is such a pain since the read command itself is a common word. Try searching "unix OR linux read command examples" or using the command substitution keyword. :eek:
So, I wanted to use a command statement similar to the following.
This is kinda taken... (2 Replies)
Hello Folks,
how to write a command on vi that allow to repeat last substitution command?
Here what I want to do :
1
2
3
1
2
3
1
2
3
:.,+2s/\n/ /And I obtain :
1 2 3
1
2
3
1 (5 Replies)
echo "abc 123" | sed 's/*/& &/g'
output:
a b c 123 123
Why there are spaces between the "abc" letters?
echo "abc 123" | sed 's/*/&&/'
output:
abc 123
Why the regex in the above script does not match anything? I thought * should match 123 in any case.
---------- Post updated at 08:25... (3 Replies)
Oracle Linux 5.6, 64-bit
Given the following snippet
wrkvar=`sqlplus -s / as sysdba <<EOF
set echo off feedback off head off trimsp on
select count(*) from v\$parameter
where name in ('db_file_name_convert','log_file_name_convert')
and value is not null;
EOF`
echo wrkvar=$wrkvarProduces... (2 Replies)
Hi Gurus,
I am a little bit confused by the sed command.
my file is below
cat sample
aaa
bbb
ccc
ddd
eee
fff
ggg
hhh
iii
below is command and output. (6 Replies)
Discussion started by: ken6503
6 Replies
LEARN ABOUT OSF1
msh
msh(1) General Commands Manual msh(1)NAME
msh - MH shell (only available within the message handling system, mh)
SYNOPSIS
msh [-help] [-prompt string] [file]
OPTIONS
Prints a list of the valid options for this command. Sets the prompt for msh. If the string you specify includes white space, you must
enclose it in double quotes ("). If you do not specify this option, the default prompt is (msh).
The following defaults are used by msh:
file defaults to -prompt (msh)
DESCRIPTION
The command msh is an interactive program that implements a subset of the normal MH commands operating on a single file in packf format.
That is, msh is used to read a file that contains a number of messages, as opposed to the standard MH style of reading a number of files,
each file being a separate message in a folder.
The chief advantage of msh is that, unlike the normal MH style, it allows a file to have more than one message in it. In addition, msh can
be used on other files, such as message archives which have been packed using packf.
When invoked, msh reads the named file, and enters a command loop. You can type most of the normal MH commands. The syntax and semantics of
these commands typed to msh are identical to their MH counterparts. In cases where the nature of msh would be inconsistent with the way MH
works (for example, specifying a +folder with some commands), msh will duly inform you. The commands that msh currently supports are: ali
burst comp dist folder forw inc mark mhmail msgchk next packf pick
prev refile repl rmm scan send show sortm whatnow whom
In addition, msh has a help command which gives a brief overview of all the msh options. To terminate msh, either type <CTRL/D>, or use the
quit command. If the file is writable and has been modified, then using quit will ask you if the file should be updated.
A redirection facility is supported by msh. Commands may be followed by one of the following standard symbols: Open an interprocess chan-
nel; connect output to another command. Write output to file. Append output to file.
If file starts with a tilde (~), then a C-shell-like expansion takes place. Note that commands are interpreted by sh(1).
When parsing commands to the left of any redirection symbol, msh will honor the backslash () as the quote next-character symbol, and dou-
ble quotes (") as quote-word delimiters. All other input tokens are separated by white space (spaces and tabs).
You may wish to use an alternative profile for the commands that msh executes; see mh_profile(4) for details of the $MH environment vari-
able.
RESTRICTIONS
The msh shell is not the C-shell, and a lot of the facilities provided by the latter are not present in the former. In particular, msh does
not support back-quoting, history substitutions, variable substitutions, or alias substitutions.
msh does not understand back-quoting. The only effective way to use pick inside msh is to always use the seq select option. If you add the
following line to your pick will work equally well from both the shell and msh:
pick: -seq select -list
There is a strict limit of messages per file in packf format which msh can handle. Usually, this limit is 1000 messages.
PROFILE COMPONENTS
Path: To determine your Mail directory
Msg-Protect: To set protections when creating a new file
fileproc: Program to file messages
showproc: Program to show messages
FILES
The user profile. The system customization file.
SEE ALSO csh(1), packf(1), sh(1), mh_profile(4)msh(1)