Hello All,
Below is a simple script i worte to find the 208th char in a file. If the char = "C" then I re-direct the line to a file called change.txt. If it is not "C" then I re-direct it to a file called delete.txt.
My problem is I have a file 0f 500K lines. this script is very slow. I am... (4 Replies)
Hello,
I have written the script below to extract specific data from a text file and then use the data extracted as parameters for another shell script call 'loto_tsim'.
Everytime I run my script it complains about the 'echo' line. Am I missing something? I have spent hours and still cannot solve... (10 Replies)
hi,
just wanted to make a shortcut of this one
a="a b c"
b=`echo $a | awk '{print $2}'`
echo "the middle is $b"
why can't i do this:
a="a b c"
echo "the middle is ${`echo $a | awk '{print $2}'`}" <- bad substitution :wall:
thanks (6 Replies)
Hello all,
I wrote this command line for some calculation on my given input files based on another input file which is a txt file.
while read BAM REGION; do samtools view $BAM $REGION | awk '{if ($2==0) print $0}' | wc -l >>log.txt; echo "$REGION"; done >> log.txt <regions.txt
It takes... (4 Replies)
# echo 'export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk '{print \$1}')' >> new_file
#
# cat new_file
export HISTFILE=/var/log/history/history_$(uname -n)_$(date +%Y:%b:%d:%H:%M)_$(who am i | awk {print $1})
#
Now how to echo the quotes around the... (2 Replies)
i have a script that has many lines similar to:
echo $var | awk -F"--" '{print $2}'
as you can see, two commands are being run here. echo and awk.
id like to combine this into one awk statement.
i tried:
awk -F"--" "BEGIN{print $var; print $2}"
but i get error messages. (10 Replies)
Stumped with the formatting of the awk output when used with variables, e.g.:
awk -F, 'BEGIN {OFS=","} print {$2,$3,$4}' $infile1
produces the desired output (with rows), but when echoing the variable below, the output is one continuous line
var1=$(awk -F, 'BEGIN {OFS=","} print... (4 Replies)
Hello,
I've been trying to find the answer to this with Google and trying to browse the forums, but I haven't been able to come up with anything. If this has already been answered, please link me to the thread as I can't find it.
I've been asked to write a script that pulls a list of our CPE... (51 Replies)
Hi,
I am generating a YAML file from a hosts file, but am having trouble saving it to a new file.
hosts file
127.0.0.1 localhost
192.168.1.2 host1
192.168.1.3 host2
192.168.1.4 host3
192.168.1.5 host4
YAML file
$ echo 'host_entries:' && awk '{printf " %s:\n ip:... (3 Replies)
Discussion started by: sand1234
3 Replies
LEARN ABOUT MOJAVE
git-shell
GIT-SHELL(1) Git Manual GIT-SHELL(1)NAME
git-shell - Restricted login shell for Git-only SSH access
SYNOPSIS
chsh -s $(command -v git-shell) <user>
git clone <user>@localhost:/path/to/repo.git
ssh <user>@localhost
DESCRIPTION
This is a login shell for SSH accounts to provide restricted Git access. It permits execution only of server-side Git commands implementing
the pull/push functionality, plus custom commands present in a subdirectory named git-shell-commands in the user's home directory.
COMMANDS
git shell accepts the following commands after the -c option:
git receive-pack <argument>, git upload-pack <argument>, git upload-archive <argument>
Call the corresponding server-side command to support the client's git push, git fetch, or git archive --remote request.
cvs server
Imitate a CVS server. See git-cvsserver(1).
If a ~/git-shell-commands directory is present, git shell will also handle other, custom commands by running "git-shell-commands/<command>
<arguments>" from the user's home directory.
INTERACTIVE USE
By default, the commands above can be executed only with the -c option; the shell is not interactive.
If a ~/git-shell-commands directory is present, git shell can also be run interactively (with no arguments). If a help command is present
in the git-shell-commands directory, it is run to provide the user with an overview of allowed actions. Then a "git> " prompt is presented
at which one can enter any of the commands from the git-shell-commands directory, or exit to close the connection.
Generally this mode is used as an administrative interface to allow users to list repositories they have access to, create, delete, or
rename repositories, or change repository descriptions and permissions.
If a no-interactive-login command exists, then it is run and the interactive shell is aborted.
EXAMPLE
To disable interactive logins, displaying a greeting instead:
$ chsh -s /usr/bin/git-shell
$ mkdir $HOME/git-shell-commands
$ cat >$HOME/git-shell-commands/no-interactive-login <<EOF
#!/bin/sh
printf '%s
' "Hi $USER! You've successfully authenticated, but I do not"
printf '%s
' "provide interactive shell access."
exit 128
EOF
$ chmod +x $HOME/git-shell-commands/no-interactive-login
To enable git-cvsserver access (which should generally have the no-interactive-login example above as a prerequisite, as creating the
git-shell-commands directory allows interactive logins):
$ cat >$HOME/git-shell-commands/cvs <<EOF
if ! test $# = 1 && test "$1" = "server"
then
echo >&2 "git-cvsserver only handles "server""
exit 1
fi
exec git cvsserver server
EOF
$ chmod +x $HOME/git-shell-commands/cvs
SEE ALSO ssh(1), git-daemon(1), contrib/git-shell-commands/README
GIT
Part of the git(1) suite
Git 2.17.1 10/05/2018 GIT-SHELL(1)