I need to have my script know what directory it's in, even if it's run from a symlink located elsewhere. Here's what I've come up with, for the benefit of anyone with a similar need, but I'm also interested to know if there's a more elegant solution. I'd rather not get into awk-land, but I couldn't get the quoting and escaping right with sed.
Hello All,
Assuming i have a thousand symlinks under directory /mydir (and its sub-dir) such as:
mysymlink1 -> ../../../myfoo/mysymlink1
mysymlink2 -> ../../../myfoo/mysymlink2
How can I search the string "myfoo" and replaced with "yourfoo" such that after the operation is complete the... (2 Replies)
Please don't laugh or call me a fool...
I'm trying to set up a script that will go through my Music File directory and generate a set of symbolic links in a directory called "What's New". Within that directory there will be a "30 Days", "3 Months", "6 Months" and "A Year" directories. Within... (0 Replies)
I create the tar file from / like so:
tar cEhf name.tar usr/us
And this creates the tar with the links intact. The problem is that this tar is going to be used for testing, so we want the links to point to the files in the tar. But when I extract the tar into /tmp, I get /tmp/usr/us/... as I... (2 Replies)
Hi I am new to shell scripting. There is a requirement to write a shell script to meet follwing needs.Prompt reply shall be highly appreciated.
script that will compare two config files and produce 2 outputs - actual config file and a report indicating changes made.
OS :Susi linux ver 10.3.
... (4 Replies)
Ive got multiple PCs, sharing an NFS mounted home dir. For certain apps I would like to keep the config files host specific. Easy solution is to create symlinks to local folders for configs. Ideally I would still want the .config files to reside in the user home folder.
Is it possible to... (2 Replies)
Hi,
My first post here:
Was looking if someone can help enhancing my code.
I am limited to sh or ash shell (android / busybox)
I made a script to look for busybox symlinks, backup them and delete them
I have these questions about the below code:
- busybox tar do not has the options... (2 Replies)
So i have read the man pages a few time. Searched google but I am not quite sure i understand all the lingo.
What i want to do is list all files on / except i dont want any symlinks (because if I am searching / I will find the "true" file...correct?)
So there is the -P, -H, and '-type l'... (2 Replies)
I am very noobish to UNIX, our guy is on vacation so I am trying to take up some slack while he is away.
Typically when we use sql from within a shell script, we do so from a file containing the sql.
Example:
$ORACLE_HOME/bin/sqlplus $ORA_DBCU/$ORA_DBCP @${cron_dir}/${report_file}.sql
... (10 Replies)
Hi,
I use rsync to move from source to target, but there are cases that I need to exclude:
Suppose in my file system, I have a soft link ~/data -> /media/volgrp/data.
Under data folder, there is a file hello.txt.
After moving command "rsync --remove-source-files -aH --force ~/data/... (3 Replies)
Discussion started by: huangyingw
3 Replies
LEARN ABOUT DEBIAN
tryto
tryto(1) General Commands Manual tryto(1)NAME
tryto - tries to run a command limited by a timeout or number of tries, can be used to run as svlogd(8) processor.
SYNOPSIS
tryto [-pPv] [-t sec] [-k ksec] [-n tries] prog
DESCRIPTION
prog consist of one or more arguments.
tryto runs and watches prog, feeding its standard input to prog's standard input. If prog exits with a return code other then 0, tryto
runs prog again after sleeping one second.
If the number of retries reaches the maximal number of tries, tryto prints an error message and gives up.
If the timeout sec seconds is reached and prog is still running, tryto sends a TERM signal to prog, waits ksec seconds for prog to termi-
nate, then sends a KILL signal if prog still is there, and exits as soon as possible.
OPTIONS -t sec timeout. Set the timeout to send TERM to prog to sec seconds. Default is 180.
-k ksec
kill timeout. Set the timeout to send KILL to prog to ksec seconds. Default is 5.
-n tries
Set the maximal number of tries to tries. If prog exited with a return code other that 0, tryto tries to rewind standard input to
the beginning using lseek(2) before starting prog again. Default is 5.
-p processor. Use this option if you run tryto as a svlogd(8) processor (see below).
-P process group. Run prog in a new session and process group, and send signals on timeout to prog's process group instead of its pid.
-v verbose. Print verbose messages to standard error.
PROCESSOR
If tryto sees the -p option, tryto runs as a svlogd(8) or multilog(8) processor, making use of filedescriptors 4 and 5:
Before starting prog, tryto moves the filedescriptor 5 to 2, so all error messages from tryto and prog will be saved in svlogd(8)'s state
to be processed on the next run of tryto -p.
After starting prog, tryto first feeds all data it reads from filedescriptor 4 into prog's standard input, then all data from filedescrip-
tor 0.
If prog fails by timeout sec seconds or maximal number of tries, tryto prints all data from standard input to standard output, an error
message to standard error, and exits with 0.
EXIT CODES
If tryto itself fails, it returns 111.
If tryto runs as a svlogd(8) processor, tryto returns 0 in all other cases.
If prog was run successfully, tryto returns 0.
If prog failed by timeout, tryto returns 100.
If prog failed by maximal number of tries, tryto returns the last return code from prog.
SEE ALSO socklog(8), uncat(1), svlogd(8), multilog(8), lseek(2)
http://smarden.org/socklog/
http://smarden.org/runit/
AUTHOR
Gerrit Pape <pape@smarden.org>
tryto(1)