03-22-2005
thanks for ur help,
one question: will it check if the directory exists and if so delete it and all its content before making the same directory?
thanks
9 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I need help on making right decision on witch unix based OS to choose from. What woud be the great for a beginner? :confused: (8 Replies)
Discussion started by: thunderfastfox
8 Replies
2. Shell Programming and Scripting
hello experts
cany any one help me i want to make one script which can rlogin to another machine .
but it should not ask me username/password from me of another machine it should take the username and password from the script only.
please help me out.
regards,
shary (2 Replies)
Discussion started by: shary
2 Replies
3. Shell Programming and Scripting
Hi there
I am trying to figure out how I can validate my string to ensure that it is consists of only lower case alpha chrataters
but for some reason whatever I do, it seems to come back with 'true'
I have tried
if " ]] ; then
echo "yes its fine"
else
echo... (21 Replies)
Discussion started by: hcclnoodles
21 Replies
4. UNIX for Dummies Questions & Answers
I understand how to use vi and emacs but I have a project which entails building a library application like a phone directory or listing of dvd's. I am lost on where to start. any help would be appreciated. (3 Replies)
Discussion started by: gustave
3 Replies
5. UNIX for Advanced & Expert Users
Dear Fellow,
I want to make my own OS, Kindly suggest from where i should start. please help me out. (2 Replies)
Discussion started by: zaigham_tt
2 Replies
6. Shell Programming and Scripting
how can i make find/sed to include directory names with spaces
the command is like this
for i in `find wp-content/themes -type f -print0 | xargs -0 grep -l
-iE 'e'`;do sed -i -e 's/word1/word2/gI' "$i";done
but it skips one directory names with spaces
sed: can't read ./Nova: No such... (5 Replies)
Discussion started by: vanessafan99
5 Replies
7. Shell Programming and Scripting
I run a small instrument lab. We track our user's time on the instruments with a very manual process of 'last wtmp.1' then cut/paste data into spreadsheets. My boss makes the initial spreadsheets then I convert and format them for uploading into our billing software (COReS). Cores is looking for a... (8 Replies)
Discussion started by: jpontius
8 Replies
8. AIX
Quick question,
is it possible to make a Tar of completely directory and placing the tar file in it (will this cause even the tar file to tarred ?)
sample:
/opt/freeware/bin/tar -cvf - /oracle | gzip > /oracle/backup.tgz
will the tar file backup.tgz also include backup.tgz ?
i tried... (5 Replies)
Discussion started by: filosophizer
5 Replies
9. UNIX for Beginners Questions & Answers
This script is executed whenever a new vehicle is added to the cycle-motor park
of campus. The script asks for the following information about the car and adds a new
line to the vehicle file.txt: name (name of an animal, unique identifier), color, mark,
model, type (e.g., electrical, manual),... (2 Replies)
Discussion started by: andre2222
2 Replies
cd(1) General Commands Manual cd(1)
NAME
cd - change working directory
SYNOPSIS
[directory]
DESCRIPTION
If directory is not specified, the value of shell parameter is used as the new working directory. If directory specifies a complete path
starting with or directory becomes the new working directory. If neither case applies, tries to find the designated directory relative to
one of the paths specified by the shell variable. has the same syntax as, and similar semantics to, the shell variable. must have execute
(search) permission in directory.
exists only as a shell built-in command because a new process is created whenever a command is executed, making useless if written and pro-
cessed as a normal system command. Moreover, different shells provide different implementations of as a built-in utility. Features of as
described here may not be supported by all the shells. Refer to individual shell manual entries for differences.
If is called in a subshell or a separate utility execution environment such as:
(which invokes on accessible directories) does not affect the current directory of the caller's environment. Another usage of as a stand-
alone command is to obtain the exit status of the command.
EXTERNAL INFLUENCES
International Code Set Support
Single- and multi-byte character code sets are supported.
Environment Variables
The following environment variables affect the execution of
The name of the home directory,
used when no directory operand is specified.
A colon-separated list of pathnames that refer to directories.
If the directory operand does not begin with a slash character, and the first component is not dot or dot-dot, searches
for directory relative to each directory named in the variable, in the order listed. The new working directory is set
to the first matching directory found. An empty string in place of a directory pathname represents the current direc-
tory. If is not set, it is treated as if it was an empty string.
EXAMPLES
Change the current working directory to the directory from any location in the file system:
Change to new current working directory residing in the current directory:
or
Change to directory residing in the current directory's parent directory:
Change to the directory whose absolute pathname is
Change to the directory relative to home directory:
RETURN VALUE
Upon completion, exits with one of the following values:
The directory was successfully changed.
An error occurred. The working directory remains unchanged.
SEE ALSO
csh(1), pwd(1), ksh(1), sh-posix(1), sh(1), chdir(2).
STANDARDS CONFORMANCE
cd(1)