So I dont enounter things like:
gzip: /sometimename.gz already exists; do you wish to overwrite (y or n)?
Want to add it into a script and if there is a file aready there to just overwrite it, otherwise the script will hang unless there is manual intervention. (1 Reply)
Hi all,
In our webserver customer wants to see the latest 10 files arrived. So the names are hardcoded in webpage like :
filename_01.txt
filename_02.txt
....
....
filename_10.txt
where the filename_01.txt is the latest one (typically the output of ls -1t) in the /../webpage directory.... (2 Replies)
Hi ,
i have two basic requirement on linux platform . I am using C language to do this .
1) copying one file to another (assuming i know their file descriptors)
2) Overwriting a file using it file descriptor .
Please guide.
regards
Aki (2 Replies)
Long story short, there was some sort of corruption with my ide and the script I was working on has been over written with nothing (the file is blank now). The IDE doesn't store a back up from what I know (I'm using notepadd++ in wine lol I know I know I'm addictted to the nppftp sidebar and geany... (1 Reply)
I have loads of files in different directories which I do miner changed on them and till now I have to create totally new directories for them, specially as I deal with a whole directory at once :wall::wall::wall::wall:
it creates such as mess really
e.g.
FILES="F1/*"
for X in $FILES
do... (2 Replies)
I have a script, which runs through cronjob every night 9 PM. It is supposed to do following tasks --
1- Connect to ftp.testsite.com via user redtest
2- Fetch file red_bill.txt to my local server, where my script is residing.
3- Rename red_bill.txt to red_bill.V01.txt everyday on sftp server.... (4 Replies)
Hi, An application is transferring a file to linux system with same file name. As file is transferring with same name always file will be overwritten. In this case we want to know what times file was overwirtten like below.
Modify: 2014-05-12 00:52:01.000000000
Modify: 2014-05-12... (2 Replies)
hi
i have a file as in follwoing:
cat apple.txt
Apple is a fruit
But this fruit is costly
Now I used the sed command and i see output as in following
# sed 's/fruit/healthy &/' fruit.txt
Apple is a healthy fruit
But this healthy fruit is costly
#
sed works fine here. But... (2 Replies)
Hello,
I have been working on script in which search and replace the multiple pattern.
1. update_params.sh read the multiple pattern from input file ParamMapping.txt(old_entry|New_entry) and passing this values one by one to change_text.sh
2. change_text.sh read... (0 Replies)
Hi Everyone,
We are trying to do a logrotate for "catalina.out" daily, So have used the "copytruncate" option in the logrotate configuration but ended up seeing there was a 0kb file touched with "catalina.out" and the other file with the current date(compressed) file created and seems the log is... (2 Replies)
Discussion started by: thiyagoo
2 Replies
LEARN ABOUT HPUX
setenv
setenv(3C)setenv(3C)NAME
setenv(), unsetenv() - add, update or remove an environment variable
SYNOPSIS
Parameters
envname Points to a string containing the name of an environment variable to be added or altered. This should not be a NULL
pointer or null string, and the string should not contain an equal character.
envval Points to a string containing the value to be set for the variable envname.
overwrite Indicates whether to overwrite the value of envname variable or not, if it already exists. Expected values are non-zero
and zero. If the environment variable does not exist in the environment, then the value of this variable is ignored.
DESCRIPTION
and functions update the environment of the calling process.
If envname does not exist, the function ignores the value of overwrite and adds the variable envname to the environment with the value
envval. If envname exists and overwrite is non-zero, then the variable envname is updated with the new value envval. If envname exists
and overwrite is zero, then the variable is not updated, and the function is considered to have completed successfully.
The function deletes the variable envname from the environment, if it exists. If the envname variable does not exist in the current envi-
ronment, the environment is unchanged, and the function is considered to have completed successfully.
If the application modifies environ or the pointers to which it points, the behavior of and is undefined.
EXTERNAL INFLUENCES
Locale
The category determines the interpretation of characters in string as single- and/or multi-byte characters.
International Code Set Support
Single- and multi-byte character code sets are supported.
RETURN VALUE
The and functions return zero on success; otherwise they return and set to indicate the error.
ERRORS
If the function fails, is set to one of the following values:
Sufficient memory is not available to add a variable or its value to
the environment.
The envname argument is a null pointer, points to an empty string, or points to a string containing an equal character.
If the function fails, is set to the following value:
The envname argument is a null pointer, points to an empty string, or points to a string containing an equal character.
EXAMPLES
The following code adds a new environment variable to the current environment.
The following code updates the variable
The following code removes the variable from the current environment.
WARNINGS
The and functions manipulate the environment pointed to by environ, and can be used in conjunction with However, envp (the third argument
to main) is not changed.
The uses to enlarge the environment (see malloc(3C)).
After the or function is called, environment variables may not be in alphabetical order.
AUTHOR
and were developed by HP.
SEE ALSO exec(2), getenv(3C), malloc(3C), putenv(3C), environ(5), thread_safety(5).
STANDARDS CONFORMANCE setenv(3C)