11-20-2014
Thank you, Singh! But I'm trying to do this without the use of sed, awk, grep, etc.
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1. Shell Programming and Scripting
Here are a couple of files related to some ideas I have had on providing a mechanism for navigation across a set of "favorite directories."
I would appreciate any comment on the approach and any other useful recommendations.
Please visit my project home page on sourceforge Bash Navigator Home... (0 Replies)
Discussion started by: rlandon@usa.net
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2. Shell Programming and Scripting
Suppose i have a file like this:
#bla bla
#bla bla bla bla bla
Bla
BLA
BLA BLA #bla bla
....
....
how can i remove all comments from every line,even if they are behind commands or strngs that are not comments?
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3. Shell Programming and Scripting
I'm trying to make a simple search script but cannot get it right. The script should search for keywords inside files. Then return the file paths in a variable. (Each file path separated with \n).
#!/bin/bash
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4. Shell Programming and Scripting
I must write a script to change all C++ like comments:
// this is a comment
to this one
/* this is a comment */
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5. Shell Programming and Scripting
Hello All,
I need a bash shell script to find out a day from the date.For example we give the date(20100227/YYYYMMDD) then we get the day 'Saturday'.
Thanks in advance,
Satheesh (5 Replies)
Discussion started by: satheesh4093
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6. Shell Programming and Scripting
Hi All,
I wanted to show on stdout that a file was found right after it happens due to indicate the activity of long search. Further more I want to store the result of the find in a file.
I have tried this:
echo -n "Searching"
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7. Programming
#!/bin/bash
timevar=`date +%F_”%H_%M”` #-- > Storing Date and Time in a Variable
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######### Next Section Does all the processing #########
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8. Shell Programming and Scripting
Hi, I'm trying to write a script to search through my computer and
find all .jpg files and put them all in a directory. So far I have
this:
for i in `find /home -name '*.jpg' ` ; do mv $i home/allen/Pictures/PicturesFound ; done
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9. Shell Programming and Scripting
Hi All,
I am very new to UNIX and I have tried this for a longtime now and unable to crack it....
There is a file that is continuously updating. I need to search for the string and find the date @ which it updated every day.....
eg:
String is "work started"
The log entry is as below:
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10. Shell Programming and Scripting
I would like to remove comments from a bash script. In addition, I would like to remove lines that consist of only white spaces, and to remove blank lines.
#!/bin/bash
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#
# $1 INFILE
# $2 OUTFILE
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LEARN ABOUT FREEBSD
rcorder
RCORDER(8) BSD System Manager's Manual RCORDER(8)
NAME
rcorder -- print a dependency ordering of interdependent files
SYNOPSIS
rcorder [-k keep] [-s skip] file ...
DESCRIPTION
The rcorder utility is designed to print out a dependency ordering of a set of interdependent files. Typically it is used to find an execu-
tion sequence for a set of shell scripts in which certain files must be executed before others.
Each file passed to rcorder must be annotated with special lines (which look like comments to the shell) which indicate the dependencies the
files have upon certain points in the sequence, known as ``conditions'', and which indicate, for each file, which ``conditions'' may be
expected to be filled by that file.
Within each file, a block containing a series of ``REQUIRE'', ``PROVIDE'', ``BEFORE'' and ``KEYWORD'' lines must appear. The format of the
lines is rigid. Each line must begin with a single '#', followed by a single space, followed by ``PROVIDE:'', ``REQUIRE:'', ``BEFORE:'', or
``KEYWORD:''. No deviation is permitted. Each dependency line is then followed by a series of conditions, separated by whitespace. Multi-
ple ``PROVIDE'', ``REQUIRE'', ``BEFORE'' and ``KEYWORD'' lines may appear, but all such lines must appear in a sequence without any interven-
ing lines, as once a line that does not follow the format is reached, parsing stops.
The options are as follows:
-k Add the specified keyword to the ``keep list''. If any -k option is given, only those files containing the matching keyword are
listed.
-s Add the specified keyword to the ``skip list''. If any -s option is given, files containing the matching keyword are not listed.
An example block follows:
# REQUIRE: networking syslog
# REQUIRE: usr
# PROVIDE: dns nscd
This block states that the file in which it appears depends upon the ``networking'', ``syslog'', and ``usr'' conditions, and provides the
``dns'' and ``nscd'' conditions.
A file may contain zero ``PROVIDE'' lines, in which case it provides no conditions, and may contain zero ``REQUIRE'' lines, in which case it
has no dependencies. There must be at least one file with no dependencies in the set of arguments passed to rcorder in order for it to find
a starting place in the dependency ordering.
DIAGNOSTICS
The rcorder utility may print one of the following error messages and exit with a non-zero status if it encounters an error while processing
the file list.
Requirement %s has no providers, aborting. No file has a ``PROVIDE'' line corresponding to a condition present in a ``REQUIRE'' line in
another file.
Circular dependency on provision %s, aborting. A set of files has a circular dependency which was detected while processing the stated con-
dition.
Circular dependency on file %s, aborting. A set of files has a circular dependency which was detected while processing the stated file.
SEE ALSO
rc(8)
HISTORY
The rcorder utility first appeared in NetBSD 1.5.
AUTHORS
Written by Perry E. Metzger <perry@piermont.com> and Matthew R. Green <mrg@eterna.com.au>.
BUGS
The ``REQUIRE'' keyword is misleading: It doesn't describe which daemons have to be running before a script will be started. It describes
which scripts must be placed before it in the dependency ordering. For example, if your script has a ``REQUIRE'' on ``named'', it means the
script must be placed after the ``named'' script in the dependency ordering, not necessarily that it requires named(8) to be started or
enabled.
BSD
August 5, 2011 BSD