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Full Discussion: For loop in bash shell
Top Forums UNIX for Dummies Questions & Answers For loop in bash shell Post 302804411 by evelibertine on Wednesday 8th of May 2013 02:03:06 PM
Old 05-08-2013
For loop in bash shell

Hi,

I am using a for loop to manipulate files data_1.txt through data_100.txt. The for-loop is set up like this:

Code:
for i in {1..100}; do cut -f1 data_$i.txt > output$i.txt

I get the following error message when I run the code:

cannot open `data.txt' for reading: No such file or directory

The code seems to run fine though if I take out the "_" sign in the filenames and rename them data1.txt through data1000.txt. Do you know why I'm getting the error and how do I go about fixing it?
 

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XCLIP-COPYFILE(1)					      General Commands Manual						 XCLIP-COPYFILE(1)

NAME
xclip-copyfile, xclip-cutfile, xclip-pastefile - copy and move files via the X clipboard SYNOPSIS
xclip-copyfile [-p] FILES... xclip-cutfile [-p] FILES... xclip-pastefile DESCRIPTION
xclip-copyfile copies files into the X clipboard, recursing into directories. xclip-cutfile copies the files, but also deletes them afterwards. -p preserve path formation xclip-pastefile pastes the files out of the clipboard EXAMPLES
Copying a file to a remote host [maggie.lkpg.cendio.se ~]$ echo "A file created on ${HOSTNAME}" > file1 [maggie.lkpg.cendio.se ~]$ xclip-copyfile file1 [sofie.homeip.net ~/doc]$ xclip-pastefile file1 [sofie.homeip.net ~/doc]$ cat file1 A file created on maggie.lkpg.cendio.se Copying an entire tree structure [sofie.homeip.net ~]$ xclip-copyfile doc [maggie.lkpg.cendio.se ~/tmp]$ xclip-pastefile doc/ doc/letter-mom-april.txt doc/file1 doc/letter-dad-march.txt Copying files with preserved path information [maggie.lkpg.cendio.se ~]$ xclip-copyfile -p /etc/sysconfig/grub tar: Removing leading `/' from member names [sofie.homeip.net ~/tmp]$ xclip-pastefile etc/sysconfig/grub [sofie.homeip.net ~/tmp]$ ls etc/sysconfig/grub etc/sysconfig/grub Moving files [sofie.homeip.net ~]$ ls letter-brother-may.txt letter-brother-may.txt [sofie.homeip.net ~]$ xclip-cutfile letter-brother-may.txt [sofie.homeip.net ~]$ ls letter-brother-may.txt ls: cannot access letter-brother-may.txt: No such file or directory [sofie.homeip.net ~]$ cd doc [sofie.homeip.net ~/doc]$ xclip-pastefile letter-brother-may.txt AUTHORS
This manual page was written by Maximilian Gass <mxey@cloudconnected.org> for the Debian project. It may be used for everything else, of course. XCLIP-COPYFILE(1)
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