Sponsored Content
Full Discussion: simple for loop/cat issue
Top Forums Shell Programming and Scripting simple for loop/cat issue Post 302357842 by frank_rizzo on Wednesday 30th of September 2009 07:03:13 PM
Old 09-30-2009
Quote:
Originally Posted by foal_11
shouldn't the output come as
Code:
1 and 2
3 and 4
5 and 6 ...(1)

rather, its coming as :
Code:
1
and
2
3
and
4

no. this is because its using the default characters for $IFS(internal field separator) which is white space. set IFS='\n' prior to your loop and you should get what you expect. I would wrap your variable in double quotes though.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Using cat command in a for loop

If I have a data file containing entries like-> abc abc:123 and I use a for loop: for I in `cat data-file` do echo $I done the output would contain 2 lines -> abc.... and abc:123 but I want it to be on only one line. How can I do this? thanks (1 Reply)
Discussion started by: sleepster
1 Replies

2. Shell Programming and Scripting

Issue with Unix cat command

Hi Experts, I am finding the performance of cat command is very wierd, it is taking more time to merge the files into a single file. We have a situation where we would be merging more than 100 files into a single file, but with cat command it is running slow. I tried doing with paste, join... (13 Replies)
Discussion started by: RcR
13 Replies

3. Shell Programming and Scripting

cat and loop

Hi I have a simple code that I want to execute. out=out.txt for f in `cat list.txt | head -1`; do echo $f >> $out echo "sleep 5" >> $out done cat list.txt | head -1 wget -q -O - 'http://test.com:15100/cgi-bin/search cat out.txt wget sleep 5 -q sleep 5 -O (10 Replies)
Discussion started by: soemac
10 Replies

4. Shell Programming and Scripting

Problem with IF - CAT - GREP in simple shell script

Hi all, Here is my requirement I have to search 'ORA' word in out.log file,if it is present then i need to send that file (out.log) content to some mail id.If 'ORA' word is not in that file then i need to send 'load succesful' message to some mail id. The below the shell script is not... (5 Replies)
Discussion started by: mak_boop
5 Replies

5. Emergency UNIX and Linux Support

cat issue

I have list of files in my current directory abc.txt 123.csv 234.csv 245.csv 145.csv 123_ex_c.sv I don't want to open first and last file. i.e (abc.txt and 123_ex_csv) I tried cat *.csv, but it won't work. Can anyone tell me the proper regex only in cat Thanks Pritish ... (2 Replies)
Discussion started by: pritish.sas
2 Replies

6. Shell Programming and Scripting

Issue in cat command

We have shell script (in ksh) which reads the records from a csv file line by line and does some operation. We have below command to read the file (CSV has the absolute path of files stored on a server something like SER/IMP/TEST/2010/12/123465.1). P_FILES=`cat $P_BATCH_FILE` for i in $P_FILES... (2 Replies)
Discussion started by: shreevatsau
2 Replies

7. Shell Programming and Scripting

for loop with whole line using cat

Hi all, I need to create loop script to read full line and append a variable to each line. cat file I need the output like below 10.0.0.1,136 1 24 048800 id N4 No_Light 10.0.0.1,137 1 25 048900 id N4 No_Light 10.0.0.1,140 1 28 048c00 id N4 No_Light 10.0.0.1,262 1 38 048e80... (13 Replies)
Discussion started by: ranjancom2000
13 Replies

8. Shell Programming and Scripting

Simple cat and echo question

Apologies, probably a really simple problem: I've got a text file (nh.txt) with this in it: user1 email1 email2 user2 email1 email2 etc With the following basic script: for tline in $(cat nh.txt) do echo "**********" echo $tline done ... (3 Replies)
Discussion started by: nelmo
3 Replies

9. Shell Programming and Scripting

Script with ^M causes display issue with cat or more

I have a script to do a couple simple but repetitive commands on files that are provided to us. One of the things is to get rid of the line feeds. This is the section that is causing problems, i even cut this section into its own file to make sure nothing else was affecting it. #!/usr/bin/bash... (4 Replies)
Discussion started by: oly_r
4 Replies

10. UNIX for Beginners Questions & Answers

Issue with cat command on a for loop

Good day to all, I'd like to ask for your advice with regards to this. Scenario : I have here a file named TEST.tmp wherein the value inside is below; "ONE|TWO|FIVE|THREE|FOUR|SIX~SEVEN~EIGHT" "NINE" But when I'm trying to use this in a simple command like; for TESTING in $(cat... (4 Replies)
Discussion started by: asdfghjkl
4 Replies
GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME
gzexe - compress executable files in place SYNOPSIS
gzexe [ name ... ] DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``gzexe /bin/cat'' it will create the following two files: -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~ /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that /bin/cat works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep). BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. GZEXE(1)
All times are GMT -4. The time now is 11:51 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy