Greetz all,
I'm using OBSD 2.9 with /bin/sh as my shell. I want to modify the SH prompt to reflect my current working directory.
I'm new to shell programming, so pardon if I'm going about things wrong ;)
I thought I'd be able to do it with the following line:
PS1="`pwd`# "
but of course,... (9 Replies)
Hello there !
I am new in this Unix world and just start learning Unix. I have very simple question about changing PS1 variable (Shell Prompt)
i have local.profile file in my working directory, i open in vi edit mode and add this line PS1="Hello:>" and i save that file.
I disconnected from... (2 Replies)
HI ,
In the below script I am trying to return the value of the environment variable TIBCO_HOME to the caller
#! /usr/bin/csh
set VAR_NAME=$1
echo VAR_NAME
On the aix console.. set to setenv TIBCO_HOME /app/tibco
When I execute the script... myscript.sh TIBCO_HOME, the script... (5 Replies)
I know many will probably say go read some tutorials...I would like to say that I am. However, I need to know this for work and it needs to be done soon.
In my script I have a while loop that reads a .tbl file of 4 columns and assigns them to variables a, b, c, d.
Once in the loop i do
... (10 Replies)
Give the code:
set line = 2
set year = `sed -n '2p' file
while ($line < 500)
echo $line > f.txt
@ line = $line + 1
end
How do I utilize the variable $line in the code instead of the number 2. I'm using this in a while loop and counter. I've tried quoting it, double/single... (1 Reply)
Hello, I have a simple(I think) question!
Although simple, I have been unable to resolve it, so I hope someone can help! OK, here it is:
1)I have an awk script that prints something, such as:
awk '{print $2}' a > x
so x might hold the value of say '10'
2)Now, I just want to check to see if... (4 Replies)
Hello all!
This is my first post and I'm very new to programming. I would like help creating a simple perl or bash script that I will be using in my work as a junior bioinformatician.
Essentially, I would like to take a tab-delimted or .csv text with 3 columns and write them to a "3D" matrix:
... (16 Replies)
Hi
what i want:
listing files in a special range
ls -lrt 20120601{05..06}*
...
-rw-rw-r-- 1 imp imp 279 1. Jun 07:51 201206010550
-rw-rw-r-- 1 imp imp 279 1. Jun 07:01 201206010600
-rw-rw-r-- 1 imp imp 279 1. Jun 07:11 201206010610
-rw-rw-r-- 1 imp imp 279 1. Jun 07:21... (1 Reply)
Hi Gurus,
Not able to catch what's going wrong here. I just want to get output as "tree".
server:/mk/app/nexapp $ echo $SHELL
/usr/bin/ksh
server:/mk/app/nexapp $ export db_name1="tree"
server:/mk/app/nexapp $ export i=1
1st try:
server:/mk/app/nexapp $ echo $(db_name$i)
ksh: db_name1: ... (3 Replies)
Hi all...
Well I have not been inactive but working out how to make OSX 10.14.x command line audio player have a variable sample rate.
This is a back door as afplay does not have a sample rate flag unlike aplay for ALSA, in Linux flavours.
This is a DEMO only but a derivative of it will... (2 Replies)
Discussion started by: wisecracker
2 Replies
LEARN ABOUT SUNOS
echo
echo(1B) SunOS/BSD Compatibility Package Commands echo(1B)NAME
echo - echo arguments to standard output
SYNOPSIS
/usr/ucb/echo [-n] [argument]
DESCRIPTION
echo writes its arguments, separated by BLANKs and terminated by a NEWLINE, to the standard output.
echo is useful for producing diagnostics in command files and for sending known data into a pipe, and for displaying the contents of envi-
ronment variables.
For example, you can use echo to determine how many subdirectories below the root directory (/) is your current directory, as follows:
o echo your current-working-directory's full pathname
o pipe the output through tr to translate the path's embedded slash-characters into space-characters
o pipe that output through wc -w for a count of the names in your path.
example% /usr/bin/echo "echo $PWD | tr '/' ' ' | wc -w"
See tr(1) and wc(1) for their functionality.
The shells csh(1), ksh(1), and sh(1), each have an echo built-in command, which, by default, will have precedence, and will be invoked if
the user calls echo without a full pathname. /usr/ucb/echo and csh's echo() have an -n option, but do not understand back-slashed escape
characters. sh's echo(), ksh's echo(), and /usr/bin/echo, on the other hand, understand the black-slashed escape characters, and ksh's
echo() also understands a as the audible bell character; however, these commands do not have an -n option.
OPTIONS -n Do not add the NEWLINE to the output.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWscpu |
+-----------------------------+-----------------------------+
SEE ALSO csh(1), echo(1), ksh(1), sh(1), tr(1), wc(1), attributes(5)NOTES
The -n option is a transition aid for BSD applications, and may not be supported in future releases.
SunOS 5.10 3 Aug 1994 echo(1B)