Hey guys,
I'd like to delete all text within a text file without actually deleting the file. Is there a vi command I can do from my prompt without actually going into the file and doing a %d i think it is... to remove all the text inside?
I want to add this to a cron job to erase all the data... (2 Replies)
Hi
We had 3 server -hp112and hp146 here hp112 is production server and hp146 is staging server used for load.
when i am trying to run follwing command
rcp abc hp112:/dnbusr1/gbid/gbid02 it's trowing an error :-
remshd: Login incorrect.
But same command is working wise versa -
rcp abc... (1 Reply)
cat file.txt
fvnuiehuewf
ruevhxncvkjrh
zxjvurhfuwe
jkhvBEGINvfnvf
ijrgioe
Trying to delete a line that has the pattern "BEGIN"
cat sedtest
filename=file.txt
pattern=BEGIN
sed "/^$pattern/d" "$filename" (9 Replies)
Hi
Is it possible to do the following in a single command
/usr/xpg4/bin/sed -e '/rows selected/d' /aemu/CALLAUTO/callauto.txt > /aemu/CALLAUTO/callautonew.txt
/usr/xpg4/bin/sed -e '/^$/d' /aemu/CALLAUTO/callautonew.txt > /aemu/CALLAUTO/callauto_new.txt
exit (1 Reply)
How to use Mailx command in unix shell script, its throwing below error
#!/bin/ksh
let x=3
If ; then
mailx -s “ $x is greater than 2” example@gmail.com << EOF
This is the message body
EOF
fi
its throwing error as syntax error at EOF... (10 Replies)
Hi
I want to delete a line from a txt file for which the line number is user input. Say when user selects 19, the 19th line would be deleted from the file. Can anyone please provide me with a sed one liner for the same... I tried sed -i. The interaction would be like this
Enter the line to... (1 Reply)
Hi
I've gotten a plugin script that won't run. I keeps throwing an error at the following line.
for BARCODE_LINE in `cat ${TSP_FILEPATH_BARCODE_TXT} | grep "^barcode"`
do
#something
done
The error reads
... (3 Replies)
Hi
I want to delete a line from a txt file for which the line number is user input. Say when user selects 19, the 19th line would be deleted from the file. Can anyone please provide me with a sed one liner for the same... I tried sed -i. The interaction would be like this
Enter the line... (4 Replies)
Hi,
I am running a script sample.sh in bash environment .In the script i am using sed and awk commands which when executed individually from terminal they are getting executed normally but when i give these sed and awk commands in the script it is giving the below errors :-
./sample.sh: line... (12 Replies)
Hi,
I have a shell script which has a for loop that scans list of files and do find and replace few variables using sed command. While doing this, it deletes the last line of all input file which is something wrong. how to fix this. please suggest. When i add an empty line in all my input file,... (5 Replies)
Discussion started by: rbalaj16
5 Replies
LEARN ABOUT OPENSOLARIS
edinplace
edinplace(1) Mail Avenger 0.8.3 edinplace(1)NAME
edinplace - edit a file in place
SYNOPSIS
edinplace [--error=code] [[--file=file] command [arg ...]]
DESCRIPTION
edinplace runs command with its input from file (or standard input by default), and then replaces the contents of file with the output of
command. To the extent possible, edinplace attempts to exit with the same status as command.
If edinplace is run on standard input (no --file option), it must inherit a file descriptor 0 that is open for both reading and writing.
When processing standard input, if edinplace does not encounter a fatal error, it rewinds its standard input to offset 0 before exiting.
Thus, a script can first run edinplace command, then run another filter command such as grep, and the resulting output will be the output
of grep on command's output.
If no command is specified, edinplace just rewinds its standard input to file offset 0. In this case, it is an error to supply the --file
option. Of course, rewinding only works when standard input is a real file (as opposed to a pipe or device).
There are two options:
--error=code (-x code)
Ordinarily, edinplace attempts to exit with the same status as command. However, if edinplace encounters some fatal error (such as
being unable to execute command), it will exit with status code. The default value is 1. The range of valid exit codes is 1-255,
inclusive.
--file=file (-f file)
Specifies that file should be edited. Otherwise, edinplace will edit its standard input (which must be opened for both reading and
writing).
--skipfrom
Skip the first line of the file if it starts "From ". If edinplace is run without a command, positions the file offset at the start of
the second line of the file. If edinplace is run with a command, then the first line of the file is neither fed to the command, nor
overwritten. This option is useful for running edinplace over mail files, which sometimes start with a "From " line specifying the
envelope sender of the message. Since "From " is not part of the message header, just a Unix convention, some programs are confused by
the presence of that line. Note that if you specify a command, then edinplace resets the file offset to 0 upon exiting, even if the
--skipfrom option was present.
EXAMPLES
The following command prepends the string "ORIGINAL: " to the beginning of each line in text file message:
edinplace -f message sed -e 's/^/ORIGINAL: /'
The following command runs the spamassassin mail filter program on a mail message stored in file message, replacing the contents of message
with spamassassin's annotated output, and exiting with code 100 if spamassassin thinks the message is spam. If edinplace encounters any
fatal errors, it will exit with code 111.
edinplace -x 111 -f message spamassassin -e 100
(spamassassin reads a mail message on standard input and outputs an annotated copy of the message including information about whether or
not the message is likely to be spam and why. The -e option to spamassassin specifies what exit status spamassassin should use if the
message appears to be spam; edinplace will use the same exit code as the program it has run.)
To run spamassassin on incoming mail before accepting the mail from the remote client, place the following line in an appropriate Mail
Avenger rcpt file as the last command executed:
bodytest edinplace -x 111 spamassassin -e 100
SEE ALSO avenger(1)
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
edinplace does not make a copy of the file being edited, but rather overwrites the file as it is being processed. At any point where
command has produced more output than it has consumed input from the file, edinplace buffers the difference in memory. Thus, a command
that outputs large amounts of data before reading the input file can run edinplace out of memory. (A program that outputs data as it reads
even a very large file should be fine, however.)
If command crashes or malfunctions for any reason, you will likely lose the input file, since edinplace will view this as a program that
simply outputs the empty file.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 edinplace(1)