Hi Friends,
Can any of you explain me about the below line of code?
mn_code=`env|grep "..mn"|awk -F"=" '{print $2}'`
Im not able to understand, what exactly it is doing :confused:
Any help would be useful for me.
Lokesha (4 Replies)
Hi Guys,
we have a shell script which basically query the Database which retrieves huge data and use the data with "egrep" .
Now there is some data which contains characters like "abc)" and the same is used like below :
"egrep (.+\|GDPRAB16\|GDPR/11702 96 abc)\|$ temp.txt"
now while... (7 Replies)
Hi Team,
I am new to this forum and also trying to learn Unix.
I will highly appriciate your help if you can help me to get the right command .
{{{
I use the command " today | egrep '(10:| 11: )' | grep ERROR " to grep all the files that has been error betweeen 10 to 11... (6 Replies)
Hi,
I have line in input file as below:
3G_CENTRAL;INDONESIA_(M)_TELKOMSEL;SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL
My expected output for line in the file must be :
"1-Radon1-cMOC_deg"|"LDIndex"|"3G_CENTRAL|INDONESIA_(M)_TELKOMSEL"|LAST|"SPECIAL_WORLD_GRP_7_FA_2_TELKOMSEL"
Can someone... (7 Replies)
So far what i've got is
egrep '^(\\)\*$'No luck.
I've searched the web and not much luck. I know about the escape character \ but its confusing to figure out how to use it to match a backslash and use it to escape the asterisk also. Any ides? Thanks! (8 Replies)
Hello Unix experts,
If I could get any explanations on why the code below doesn't work it would be great !
My input looks like that ("|" delimited):
Saaaaabbbbbccccc|ok
Sdddddfffffggggg|ok
The goal is, if $2 is "ok", to remove everything before the pattern given in the match function... (5 Replies)
I am executing following command
egrep -w I filename.txt
the filename.txt has following data ....
-I 07-18 08:31:19.924 9880 6 SessionManager ConnectConfig: ConfigurationWebService LoginResults=SuccessfulLogin
I am so hungry that I need to eat
I expect egrep to print only the second... (1 Reply)
How to use "mailx" command to do e-mail reading the input file containing email address, where column 1 has name and column 2 containing “To” e-mail address
and column 3 contains “cc” e-mail address to include with same email.
Sample input file, email.txt
Below is an sample code where... (2 Replies)
Hello.
System : opensuse leap 42.3
I have a bash script that build a text file.
I would like the last command doing :
print_cmd -o page-left=43 -o page-right=22 -o page-top=28 -o page-bottom=43 -o font=LatinModernMono12:regular:9 some_file.txt
where :
print_cmd ::= some printing... (1 Reply)
Discussion started by: jcdole
1 Replies
LEARN ABOUT DEBIAN
git-receive-pack
GIT-RECEIVE-PACK(1) Git Manual GIT-RECEIVE-PACK(1)NAME
git-receive-pack - Receive what is pushed into the repository
SYNOPSIS
git-receive-pack <directory>
DESCRIPTION
Invoked by git send-pack and updates the repository with the information fed from the remote end.
This command is usually not invoked directly by the end user. The UI for the protocol is on the git send-pack side, and the program pair is
meant to be used to push updates to remote repository. For pull operations, see git-fetch-pack(1).
The command allows for creation and fast-forwarding of sha1 refs (heads/tags) on the remote end (strictly speaking, it is the local end
git-receive-pack runs, but to the user who is sitting at the send-pack end, it is updating the remote. Confused?)
There are other real-world examples of using update and post-update hooks found in the Documentation/howto directory.
git-receive-pack honours the receive.denyNonFastForwards config option, which tells it if updates to a ref should be denied if they are not
fast-forwards.
OPTIONS
<directory>
The repository to sync into.
PRE-RECEIVE HOOK
Before any ref is updated, if $GIT_DIR/hooks/pre-receive file exists and is executable, it will be invoked once with no parameters. The
standard input of the hook will be one line per ref to be updated:
sha1-old SP sha1-new SP refname LF
The refname value is relative to $GIT_DIR; e.g. for the master head this is "refs/heads/master". The two sha1 values before each refname
are the object names for the refname before and after the update. Refs to be created will have sha1-old equal to 0{40}, while refs to be
deleted will have sha1-new equal to 0{40}, otherwise sha1-old and sha1-new should be valid objects in the repository.
This hook is called before any refname is updated and before any fast-forward checks are performed.
If the pre-receive hook exits with a non-zero exit status no updates will be performed, and the update, post-receive and post-update hooks
will not be invoked either. This can be useful to quickly bail out if the update is not to be supported.
UPDATE HOOK
Before each ref is updated, if $GIT_DIR/hooks/update file exists and is executable, it is invoked once per ref, with three parameters:
$GIT_DIR/hooks/update refname sha1-old sha1-new
The refname parameter is relative to $GIT_DIR; e.g. for the master head this is "refs/heads/master". The two sha1 arguments are the object
names for the refname before and after the update. Note that the hook is called before the refname is updated, so either sha1-old is 0{40}
(meaning there is no such ref yet), or it should match what is recorded in refname.
The hook should exit with non-zero status if it wants to disallow updating the named ref. Otherwise it should exit with zero.
Successful execution (a zero exit status) of this hook does not ensure the ref will actually be updated, it is only a prerequisite. As such
it is not a good idea to send notices (e.g. email) from this hook. Consider using the post-receive hook instead.
POST-RECEIVE HOOK
After all refs were updated (or attempted to be updated), if any ref update was successful, and if $GIT_DIR/hooks/post-receive file exists
and is executable, it will be invoked once with no parameters. The standard input of the hook will be one line for each successfully
updated ref:
sha1-old SP sha1-new SP refname LF
The refname value is relative to $GIT_DIR; e.g. for the master head this is "refs/heads/master". The two sha1 values before each refname
are the object names for the refname before and after the update. Refs that were created will have sha1-old equal to 0{40}, while refs that
were deleted will have sha1-new equal to 0{40}, otherwise sha1-old and sha1-new should be valid objects in the repository.
Using this hook, it is easy to generate mails describing the updates to the repository. This example script sends one mail message per ref
listing the commits pushed to the repository:
#!/bin/sh
# mail out commit update information.
while read oval nval ref
do
if expr "$oval" : '0*$' >/dev/null
then
echo "Created a new ref, with the following commits:"
git rev-list --pretty "$nval"
else
echo "New commits:"
git rev-list --pretty "$nval" "^$oval"
fi |
mail -s "Changes to ref $ref" commit-list@mydomain
done
exit 0
The exit code from this hook invocation is ignored, however a non-zero exit code will generate an error message.
Note that it is possible for refname to not have sha1-new when this hook runs. This can easily occur if another user modifies the ref after
it was updated by git-receive-pack, but before the hook was able to evaluate it. It is recommended that hooks rely on sha1-new rather than
the current value of refname.
POST-UPDATE HOOK
After all other processing, if at least one ref was updated, and if $GIT_DIR/hooks/post-update file exists and is executable, then
post-update will be called with the list of refs that have been updated. This can be used to implement any repository wide cleanup tasks.
The exit code from this hook invocation is ignored; the only thing left for git-receive-pack to do at that point is to exit itself anyway.
This hook can be used, for example, to run git update-server-info if the repository is packed and is served via a dumb transport.
#!/bin/sh
exec git update-server-info
SEE ALSO git-send-pack(1), gitnamespaces(7)GIT
Part of the git(1) suite
Git 1.7.10.4 11/24/2012 GIT-RECEIVE-PACK(1)