I have a lot of programs i want to run on some data files, they need to be done sequentially. Often the output from one program is the input for the next.
bash seems to limit the number of times I issue commands whilst it is running the first. so the question: Is there any smart way to queue commands up, or would a simple script be better (I really am a beginner and have no idea how to do this)?
You've hit the nail straight on -- a simple script would be perfect. Not only does it allow you the freedom to run one command to accomplish several tasks, its easy to repeat the process if that is needed.
Excuse me if you know this, but on the off chance that you dont....
Edit a file with vi, or similar editor, add your commands in the order you desire, and save the file. You'll need to make the file executable, and once that is done you can run your script.
To make it executable, use the chmod command (assuming the filename is myscript.bash):
Then you can run it by typing 'myscript.bash' on the command line.
The 'set -e' command causes the script to exit immediately on error; prevents command2 and command3 from being executed if command1 fails. You can do your own error checking, and maybe recovery, but the 'set -e' is the easiest. If these commands are long running, I like having an echo message in the script letting me know what is currently running:
Oh how embarassing!! That should have been
Guess I've taken fatfingering to a new level
Quote:
Originally Posted by Jay-pea
how could I change the script so I can input the name of x on the command line?
Use $1 instead of x in your filename.
You'll need to be careful as the underbar (_) character is treated as a part of a variable name, so put the variable name in {} to keep things right. In this case $1 is the first argument on the command line after the command name. So if you entered `myscript foo` your filenames would be `file_foo_1` and so on. You might also want to test to ensure that a parameter was entered on the command line:
The test causes the error message and immediate exit from the script if the variable $1 is empty (not entered on the command line).
Hello, very new to this and have to use tcsh (not a choice at the moment).
I need to convert files within sub directories. My foreach loops don't work.
Directories are as follow:
sub-001
--ses-T1
---- anat
--------File.nii
--ses-T2
----anat
-------File.nii
sub-002
and so on.
... (2 Replies)
Hi there,
Here is my checklist of items,
4.1.1 Alerter
4.1.2 Client Services for Netware
4.1.3 Clipbook
4.1.4 Fax Service
4.1.5 File Replication
4.1.6 File Services for Macintosh
4.1.7 FTP Publishing Service
4.1.8 Help and Support
4.1.9 HTTP SSL
4.1.10 IIS Admin Service ... (1 Reply)
Hi,
Let's I have the following strings (md5):
07177edf8261d28c6a003e583fcbe38c
0717c0037b3a20fc0f0998e673f228d5
0717d611a5d24374628b98e17fd00977,0717d611a5d24374628b98e17fd00977
07189a18afdae558bb5aadfe602e4a91
0719e97d481c239667f38a3e166bed74
071af3225fe50a1fdbb42c43aac313cc... (4 Replies)
Hi everyone! So I have a listView on my Form named "officeView" I already have the code to add and update info into it, but Im having troubles deleting items out of it. :/
Now I know how to delete an Item from the listView, but I want the item before the deleted item to become automatically... (0 Replies)
Little lost here, I am trying to search a line for both values after the $ signs. My ultimate goal is to get percertage.
<?php
$string = "Something on sale for $4 and orginal price $10";
$strstr =. strstr($string, '$');
$strrchr =. strrchr($string, '$');
echo "$strstr<br>";
echo... (1 Reply)
Hi,
I've a list in the following format:
Empdept filedetails buildingNo Area
AAA 444 2 juy
AAA 544 2 kui
AAA 567 4 poi
AAA 734 5 oiu
AAA 444 ... (2 Replies)
Hi,
I'm a complete newbie so bear with me.
I have a directory (and sub-dirs) full of .doc, .xls files.
What I'm trying to do is do a single search within the files (i.e. within each .doc etc) for occurrences of multiple items e.g. apples, pears, grapes, bananas.
Basically I'd provide a... (4 Replies)
OS=HP-UX ksh
The following works, except I want to include the <start> and <end> in the output.
awk -F '<start>' 'BEGIN{RS="<end>"; OFS="\n"; ORS=""} {print $2} somefile.log'
The following work in bash but not in ksh
sed -n '/^<start>/,/^<end>/{/LABEL$/!p}' somefile.log (4 Replies)
Hello Guys,
Sometimes it is necessary to add more swap space after installation. For example, you may upgrade the amount of RAM in your system from 64 MB to 128 MB, but there is only 128 MB of swap space. It might be advantageous to increase the amount of swap space to 256 MB if you perform... (11 Replies)
Hi,
I have 2 files with contents in them and I need to compare each item in each file.
File1:
item4
item5
File2:
item2
item3
item5
item6
The items names can be of different lengths.
If the items in the File1 are not in File2,
delete the missing item in File1.
The resulting... (12 Replies)