04-05-2012
Quote:
What is difference between echo * and ls?"
Surely you can research:
There are subtle differences across versions of both commands depending on the version of unix/Linux.
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1. Shell Programming and Scripting
I'm sure this is an easy one but I can't seem to get it working. Given the following:
for oldName in `ls *.JPG` ;do
newName=<confusion here. how to make sed perform 's/.JPG/_thumb.JPG/g' operation on $oldName>
done
Could someone show me what I'm doing wrong?
Thanks
Ken (1 Reply)
Discussion started by: ktoz
1 Replies
2. Shell Programming and Scripting
Hi all,
I have a directory have all of the .stat and .dat file :
they are is a pipe separate flat file.
Example:
log-20061202.stat contain 1st line and last line of log-20061202.dat with record count of that day.
Example:
Total record = 240
Tom|02-12-2006|1600 W.Santa... (18 Replies)
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3. Shell Programming and Scripting
Basically I have a shell script and i want to search the computer for a folder and if that folder exists i want to take some action. Not sure exactly how to do this most efficiently.
Not very experienced....any help would be appreciated. (1 Reply)
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4. Shell Programming and Scripting
Hello everybody...
I'm a Unix newbie and i just got this task at work to figure out what's wrong with a daily script my team is using.
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5. Shell Programming and Scripting
Q1>How do i read and write to file in shell script. Here is what i want let's assume the filename as "file1"
Read file1
Check the content of file1 which can be either "0" or "1"
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{
execute a command
}
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6. Shell Programming and Scripting
My problem looks like it should have a simple solution but it seems that after many days of research I cannot find a good solution. What I have is an input file that contains lines of information. What I need is to extract specific information from that file. What I know is that somewhere in the... (2 Replies)
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7. Shell Programming and Scripting
script is:
dirname= "$(date +%b%d)_$(date +%H%M)"
mkdir $dirname
should create a directory named Nov4_
Instead I get the following returned:
root@dchs-pint-001:/=>./test1
./test1: Nov04_0736: not found.
Usage: mkdir Directory ...
root@dchs-pint-001:/=>
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8. Shell Programming and Scripting
Can someone help me write this shell script?
I am completely new to shell and as a fun task my uncle has challenged me a problem (out of all other people). Basically, all he wants me to do is to create backup file in a folder that is named “disables.”
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9. Shell Programming and Scripting
Hello all,
I want to write a shell script to list the contents of a directory and number them and write them to a file.
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10. UNIX for Beginners Questions & Answers
Hi,
I am totally a newbie to any programming languages and I just started an entry level job in an IT company. One of my recent tasks is to create a script that is able to show the log file of linux service (i.e. ntpd service)
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RBASH(1) General Commands Manual RBASH(1)
NAME
rbash - restricted bash, see bash(1)
RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO
bash(1)
GNU Bash-4.0 2004 Apr 20 RBASH(1)