How can I redirect all stdout and stderr messages from a command to /dev/null (or to a file if need be) except messages that start with the word 'foo'? Messages that start with 'foo' need to be displayed in real time (i.e., when they are sent to stdout/stderr by the command). Thanks. (5 Replies)
Hello!
I have somo problems with simple scripts like this:
#!/bin/bash
echo -n "Enter your name and press : "
read var_name
echo "Your name is: $var_name"
When I try to run it, this error occurs: ':not a valid identifier var_name.
Why?? (I work in cygiwin)
Is there anybody out... (10 Replies)
i write a shell program and i execute that after i made a bin directiry in my home directory(i didnt give any permissions)
now i change to other directory.then i execute it bit it is saying " no such a file or directory"
can any one help me please (2 Replies)
I am having an issue with using cygwin (on Windows XP). My script errors on if -command. The script here works fine on Linux, but cygwin fails...
#!/bin/sh
if then
echo "Test"
fi
The error -message:
./ShellTest.sh: line 4: syntax error near unexpected token `fi'
./ShellTest.sh:... (1 Reply)
hi and sorry for crossposting...
I have data, the first column is the date ("2011 02 03 12 45") and follow I have the measurements . What I would like to do is:
to read the data line by line and write the data of "today" in a new file and "yesterday" as well in another file, separated by... (2 Replies)
Hey all,
Writing a program that searches for a username and if they are online creates a 'beep' and sends the username and date to a log file.
the error i am getting is:
paul.obrien16@aisling:~/os$ bash checklogin
: command not found
Enter username
paul.obrien16
': not a valid... (2 Replies)
Hello,
I am new to shell scripting. I have a question I would greatly appreciate any suggestions on. I am writing a ksh script that will launch bin files. The files are owned root and the application runs under root. The application administrators do not get root access. The script is intended... (1 Reply)
List directories at the home directory in increasing order.
First of all is this correct?
cd ~/
du -h|sort -n|more
First command is to go to the home directory and second does the rest.
Is there a way to do them in single command.
Thanks in advance. (1 Reply)
Hey all,
I would like to ask your help and sorry in advance for my ignorance since I am a complete beginner in this.
I need to create a UNIX script that will:
- scan a small number of folders and subfolders (see a similar file tree in the attachment)
-
- for each final folder (each of... (8 Replies)
Hi,
can someone explain how this aliases work:
alias m 'if ( \!:$ =~ *gz) set status = 1 && most \!:$ || gzcat \!:1 | most '
I mean, I know what it does, but I don't know how
- what is \!:$ and \!:1
- how do it used the && and ||
- what it does with status variable?
thanks (3 Replies)
Discussion started by: tzvikao
3 Replies
LEARN ABOUT SUNOS
pwd
pwd(1) User Commands pwd(1)NAME
pwd - return working directory name
SYNOPSIS
/usr/bin/pwd
DESCRIPTION
The pwd utility writes an absolute path name of the current working directory to standard output.
Both the Bourne shell, sh(1), and the Korn shell, ksh(1), also have a built-in pwd command.
ENVIRONMENT VARIABLES
See environ(5) for descriptions of the following environment variables that affect the execution of pwd: LANG, LC_ALL, LC_MESSAGES, and
NLSPATH.
EXIT STATUS
The following exit values are returned:
0 Successful completion.
>0 An error occurred.
If an error is detected, output will not be written to standard output, a diagnostic message will be written to standard error, and the
exit status will not be 0.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
|CSI |enabled |
+-----------------------------+-----------------------------+
|Interface Stability |Standard |
+-----------------------------+-----------------------------+
SEE ALSO cd(1), ksh(1), sh(1), shell_builtins(1), attributes(5), environ(5), standards(5)DIAGNOSTICS
``Cannot open ..'' and ``Read error in ..'' indicate possible file system trouble and should be referred to a UNIX system administrator.
NOTES
If you move the current directory or one above it, pwd may not give the correct response. Use the cd(1) command with a full path name to
correct this situation.
SunOS 5.10 28 Mar 1995 pwd(1)