Whitespace in filenames in for loop in bash script Post: 302313495

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1. Shell Programming and Scripting

while read loop preserving leading whitespace

Hi all, I've been trying to get this to work for ages to no avail. I've searched this site and googled but cannot find a satisfactory answer. I've got a while loop, like this while read line do echo "$line" done < file_name Now, my problem is that most of the lines in the file...

2. Shell Programming and Scripting

Of bash and whitespace...

Hmmm... Bash doesn't parse whitespace with a read. lev@sys09:~$ read line; echo "$line" test test You can imagine what this does if you're using a shell script to read a list of unknown file names containing unknown spaces. lev@sys09:~$ read word1 word2; echo "$word1,$word2" 123 456...

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Preserving whitespace in a for loop

I obviously haven't learned my lesson with shell and whitespace. find /path/to/some/where/ -name "*.pdf" | awk '{print $5}'| uniq -d results: some Corporation other Corporate junk firmx Works fine from cmdline but the whitespace turns into another FS in a for loop. for...

4. Shell Programming and Scripting

Preventing whitespace to be a delimiter in a for loop (bash/sh)

Hi, I have a for loop which iterates over a list of strings, separated by whitespace: $ list="1 2 3" $ for i in $list; do echo $i; done 1 2 3 I now want to introduce some strings containing whitespace themselves ... This is straightforward if I directly iterate over the list: $ for...

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Bash script - stripping away characters that can't be used in filenames

I want to create a temp file which is named based on a search string. The search string may contain spaces or characters that aren't supposed to be used in filenames so I want to strip those out. My thought was to use 'tr' with but the result is the opposite of what I want: $ echo "test...

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Hi Following is an example line. echo "192.22.22.22 \"33dffwef\" 200 300 dsdsd" | sed "s:$\ *\ $:\1:" I want it's output to be 200 However this is not the case. Can you tell me how to do it? I don't want to use AWK for this. Secondly, how can i fetch just 300? Should I use "\2"...

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For/While Loop to Increment Filenames in a Script

Daily stupid question. I want to increment the file name everytime the script is run. So for example if the filename is manager.log and I run the script, I want the next sequence to be manager.log1. So to be clear I only want it to increment when the script is executed. So ./script...

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Help with a bash loop script

Create a single bash script that does the following: a. Print out the number of occurrences for each motif that is found in the bacterial genome and output to a file called motif_count.txt b. Create a fasta file for each motif (so 3 in total) which contains all of the genes and their...

LEARN ABOUT DEBIAN

rbash

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)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

while read loop preserving leading whitespace

Discussion started by: zazzybob

2. Shell Programming and Scripting

Of bash and whitespace...

Discussion started by: lev_lafayette

3. Shell Programming and Scripting

Preserving whitespace in a for loop

Discussion started by: s_becker

4. Shell Programming and Scripting

Preventing whitespace to be a delimiter in a for loop (bash/sh)

Discussion started by: kkkoehne