Specifying a list name as argument and using that list in script.
Is there a way I can specify the name of a list as an argument to a shell script and then use the values of that list name in the script?
I need to do this WITHOUT using case statements.
Something like this:
My reason for not wanting to use case statements is that the lists will be added/changed/removed by other Sys Admins and I don't want all of us to be mucking around with the script. Actually the lists will be in a different file altogether and I'll just source that file to make it even less likely the script will need to be opened.
If there's not a method in shell, can Perl handle this?
Hi,
I'm using bash and ksh93 compatible derivatives.
In a recent getopts experience, I found myself spending far too much
time on this little problem. I hope someone can help...
So here's the deal.
I want to build have a command line interface that accepts either zero,
one, or... (4 Replies)
Hi
I executed the code
for file in `ls pdb*.ent`
do
new_name=`echo $file | sed 's/^pdb//;s/.ent/.txt/'`
mv $file $new_name
done
Its giving error at ' ls pdb*.ent' argument list too long
i have around 150000 entries
please help
Thank you (6 Replies)
I have a wrote a script which consits of the below line.. Below of this script I'm getting this error "ksh: /usr/bin/ls: arg list too long"
The line is
log_file_time=`ssh -i $HOME/.ssh/id_rsa -q $i ls -lrt /bp/karthik/test/data/log/$abc*|tail -1|awk '{print $8}'`
And $abc alias is as "p |... (1 Reply)
Hi,
Using ps, I can't work out what is the right options to use to show full listing of the process or command, can someone please advise what options I should be using?
Example output of a "trimmed" process is as below and I know this is not the complete command line that I've executed,... (8 Replies)
I have a huge set of files (with extension .common) in my directory around 2 million. When I run this script on my Linux with BASH, I get /bin/awk: Argument list too long
awk -F'\t' '
NR == FNR { a=NR }
NR != FNR {
sub(".common", "", FILENAME)
print a, FILENAME, $1
}
'... (1 Reply)
Dear Experts,
I have a list of 10K files in a directory. I am not able to execute any commands lile ls -lrt, awk, sed, mv, etc........
I wanna execute below command and get the output. How can I achieve it?? Pls help.
root# awk -F'|' '$1 == 1' file_20120710* | wc -l
/bin/awk: Argument list... (2 Replies)
Hi I am using find command --
find "directory1" -type f | xargs -i mv {} "directory2"
to avoid above argument list too long problem.
But, issue i am facing is directory1 is having subdirectories due to this i am facing directory traversal problem as i dont want to traverse subdirectories... (9 Replies)
Hi all,
I am using GNU sed (named gsed under macports) in OSX. I have a directory with a series of files named pool_01.jpg through pool_78802.jpg. I am trying to use this command to rename the files to their checksum + extension.
md5sum * | gsed -e 's/\(*\) \(.*\(\..*\)\)$/mv -v \2 \1\3/e'
... (3 Replies)
Hello,
I want to execute remote command with ssh.
For exemple, i have a variable
SERVERS=lpar1,lpar2,lpar3
I want to execute some commands like:
ssh -q lpar1 ls /
ssh -q lpar2 ls /
ssh -q lpar3 ls /
Can you help me with awk command ?
Thank you :) (6 Replies)
Hi Team,
Here's the situation.
I have approximately 300000 to 500000 jpg files in /appl/abcd/work_dir
mv /appl/abcd/work_dir /appl/abcd/process_dir
The above move command will work if the jpg files count is close to 50000 (not sure). If the count is less this mv command holds good. But if... (14 Replies)
Discussion started by: kmanivan82
14 Replies
LEARN ABOUT DEBIAN
plan9-getflags
GETFLAGS(8) System Manager's Manual GETFLAGS(8)NAME
getflags, usage - command-line parsing for shell scripts
SYNOPSIS
getflags $*
usage [ progname ]
DESCRIPTION
Getflags parses the options in its command-line arguments according to the environment variable $flagfmt. This variable should be a list
of comma-separated options. Each option can be a single letter, indicating that it does not take arguments, or a letter followed by the
space-separated names of its arguments. Getflags prints an rc(1) script on standard output which initializes the environment variable
$flagx for every option mentioned in $flagfmt. If the option is not present on the command-line, the script sets that option's flag vari-
able to an empty list. Otherwise, the script sets that option's flag variable with a list containing the option's arguments or, if the
option takes no arguments, with the string 1. The script also sets the variable $* to the list of arguments following the options. The
final line in the script sets the $status variable, to the empty string on success and to the string usage when there is an error parsing
the command line.
Usage prints a usage message to standard error. It creates the message using $flagfmt, as described above, $args, which should contain the
string to be printed explaining non-option arguments, and $0, the program name (see rc(1)). If run under sh(1), which does not set $0, the
program name must be given explicitly on the command line.
EXAMPLE
Parse the arguments for leak(1):
flagfmt='b,s,f binary,r res,x width'
args='name | pid list'
if(! ifs=() eval `{getflags $*} || ~ $#* 0){
usage
exit usage
}
SOURCE
/src/cmd/getflags.c
/src/cmd/usage.c
SEE ALSO arg(3)GETFLAGS(8)