Sponsored Content
Top Forums UNIX for Dummies Questions & Answers assigning (numeric) command output to var tcsh Post 302229962 by psran on Thursday 28th of August 2008 08:54:47 AM
Old 08-28-2008
assigning (numeric) command output to var tcsh

Hello,

I'm trying to assign a numeric value that is returned from one of my programs to a variable in tcsh. I want to do:

@ r10 = './my_prog file 35'

where ./my_prog file 35 returns a decimal value, but this doesn't work. How do I achieve the desired result?

Janet
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Assigning output of command to a variable

Hi, I'm trying to assign the output of a command to a variable and then concat it with another string, however, it keeps overwriting the original string instead of adding on to the end of the string. Contents of test.txt --> This is a test var1="`head -n 1 test.txt`" echo $var1 (This is a... (5 Replies)
Discussion started by: oma04
5 Replies

2. Shell Programming and Scripting

assigning command output to a shell variable

I have the sql file cde.sql with the below contents: abcdefghij abcwhendefothers sdfghj when no one else when others wwhen%others exception when others Now I want to search for the strings containing when others together and ceck whether that does not occur more than once in the... (2 Replies)
Discussion started by: kprattip
2 Replies

3. Shell Programming and Scripting

Assigning output of command to a variable in shell

hi, I want to assign find command result into some temporary variable: jarPath= find /opt/lotus/notes/ -name $jarFile cho "the jar path $jarPath" where jarPath is temporary variable. Can anybody help on this. Thanks in advance ----Sankar (6 Replies)
Discussion started by: sankar reddy
6 Replies

4. Shell Programming and Scripting

Assigning output of a command to variable

When I run time -p <command>, it outputs: real X.XX user X.XX sys X.XXwhere X.XX is seconds. How I can take just that first number output, the seconds of real time, and assign that to a variable? (9 Replies)
Discussion started by: jeriryan87
9 Replies

5. UNIX for Dummies Questions & Answers

Assigning the output of a command to a variable, where there may be >1 line returned?

Hello I am using unix CLI commands for the Synergy CM software. The command basically searches for a folder ID and returns the names of the projects the folder sits in. The result is assigned to a variable: FIND_USE=`ccm folder -fu -u -f "%name"-"%version" ${FOLDER_ID}` When the command... (6 Replies)
Discussion started by: Glyn_Mo
6 Replies

6. Shell Programming and Scripting

Assigning expression value to tcsh variables

Hi All, I have a tcsh script as: #!/usr/bin/csh -x set packsName=$(awk -F'' '/^execute.*=true/{print $2}' ExecutePacks.config) for var in $packsName do echo "printed $var" done I want to assign the value which is returned by awk function to the variable called packsName. How do I... (2 Replies)
Discussion started by: AB10
2 Replies

7. Shell Programming and Scripting

Assigning numeric values to variable

I have a code like this v_num=9 comp_num=39 if then echo "pass" fi echo "end" I am getting an error ksh: v_num=99 comp_num=39 if then echo "pass" fi echo "end" (3 Replies)
Discussion started by: swayam123
3 Replies

8. UNIX for Dummies Questions & Answers

Tcsh command for assigning output of awk to variable

Hi I have a text file with 2 values and I am trying to assign each value to a variable and then write those to text files. So if the textfile is data.txt with 2 values x and y I want to assign mean=x, and stdev=y and then write these out in text files alongwith the id ($id has already been... (6 Replies)
Discussion started by: violin
6 Replies

9. Shell Programming and Scripting

Nawk command to output in var

Hi I have this command, which counts number of lines in a specific file and then prints it on screen.nawk 'NF{c++}END{print "Number of GPS coordinates in file: "c}' $filename I would like to have the output put into a variable, but can't seem to find the correct argument for it. How do I... (3 Replies)
Discussion started by: bulleteyedk
3 Replies

10. Shell Programming and Scripting

Expect - assigning UNIX command output to a variable

Hi, I'm writing a script that connects through ssh (using "expect") and then is supposed to find whether a process on that remote machine is running or not. Here's my code (user, host and password are obviously replaced with real values in actual script): #!/usr/bin/expect set timeout 1... (3 Replies)
Discussion started by: oseri
3 Replies
runat(1)							   User Commands							  runat(1)

NAME
runat - execute command in extended attribute name space SYNOPSIS
/usr/bin/runat file [command] DESCRIPTION
The runat utility is used to execute shell commands in a file's hidden attribute directory. Effectively, this utility changes the current working directory to be the hidden attribute directory associated with the file argument and then executes the specified command in the bourne shell (/bin/sh). If no command argument is provided, an interactive shell is spawned. The environment variable $SHELL defines the shell to be spawned. If this variable is undefined, the default shell, /bin/sh, is used. The file argument can be any file, including a directory, that can support extended attributes. It is not necessary that this file have any attributes, or be prepared in any way, before invoking the runat command. OPERANDS
The following operands are supported: file Any file, including a directory, that can support extended attributes. command The command to be executed in an attribute directory. ERRORS
A non-zero exit status will be returned if runat cannot access the file argument, or the file argument does not support extended attributes. USAGE
See fsattr(5) for a detailed description of extended file attributes. The process context created by the runat command has its current working directory set to the hidden directory containing the file's extended attributes. The parent of this directory (the ".." entry) always refers to the file provided on the command line. As such, it may not be a directory. Therefore, commands (such as pwd) that depend upon the parent entry being well-formed (that is, referring to a direc- tory) may fail. In the absence of the command argument, runat will spawn a new interactive shell with its current working directory set to be the provided file's hidden attribute directory. Notice that some shells (such as zsh and tcsh) are not well behaved when the directory parent is not a directory, as described above. These shells should not be used with runat. EXAMPLES
Example 1: Using runat to list extended attributes on a file example% runat file.1 ls -l example% runat file.1 ls Example 2: Creating extended attributes example% runat file.2 cp /tmp/attrdata attr.1 example% runat file.2 cat /tmp/attrdata > attr.1 Example 3: Copying an attribute from one file to another example% runat file.2 cat attr.1 | runat file.1 "cat > attr.1" Example 4: Using runat to spawn an interactive shell example% runat file.3 /bin/sh This spawns a new shell in the attribute directory for file.3. Notice that the shell will not be able to determine what your current direc- tory is. To leave the attribute directory, either exit the spawned shell or change directory (cd) using an absolute path. Recommended methods for performing basic attribute operations: display runat file ls [options] read runat file cat attribute create/modify runat file cp absolute-file-path attribute delete runat file rm attribute permission changes runat file chmod mode attribute runat file chgrp group attribute runat file chown owner attribute interactive shell runat file /bin/sh or set your $SHELL to /bin/sh and runat file The above list includes commands that are known to work with runat. While many other commands may work, there is no guarantee that any beyond this list will work. Any command that relies on being able to determine its current working directory is likely to fail. Examples of such commands follow: Example 5: Using man in an attribute directory example% runat file.1 man runat getcwd: Not a directory Example 6: Spawning a tcsh shell in an attribute directory example% runat file.3 /usr/bin/tcsh tcsh: Not a directory tcsh: Trying to start from "/home/user" A new tcsh shell has been spawned with the current working directory set to the user's home directory. Example 7: Spawning a zsh shell in an attribute directory example% runat file.3 /usr/bin/zsh example% While the command appears to have worked, zsh has actually just changed the current working directory to '/'. This can be seen by using /bin/pwd: example% /bin/pwd / ENVIRONMENT VARIABLES
SHELL Specifies the command shell to be invoked by runat. EXIT STATUS
The following exit values are returned: 125 The attribute directory of the file referenced by the file argument cannot be accessed. 126 The exec of the provided command argument failed. Otherwise, the exit status returned is the exit status of the shell invoked to execute the provided command. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWcsu | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+ |Interface Stability |Evolving | +-----------------------------+-----------------------------+ SEE ALSO
open(2), attributes(5), fsattr(5) NOTES
It is not always obvious why a command fails in runat when it is unable to determine the current working directory. The errors resulting can be confusing and ambiguous (see the tcsh and zsh examples above). SunOS 5.10 22 Jun 2001 runat(1)
All times are GMT -4. The time now is 07:46 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy