redirect cat to variable Post: 302213152

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Redirect to variable

how do you redirect stdout into a variable. whenever I try I get an ambiguous redirect error :( I am trying to validate some user input and failing miserably. cal $MONTH $YEAR | grep -c "$DAY" if the above is 1 then it is valid if 0 then not valid. I have been trying to redirect the output...

2. UNIX for Dummies Questions & Answers

Using a variable inside a file to cat another.

I have a question to do and it's somewhat confusing. It says, and I quote "Create a file called file_1 with three lines of text in it. Create a shell variable called "f_name", assign it the string "file_1". Use the cat command and the variable "f_name" to display the contents of the file...

3. Shell Programming and Scripting

cat > variable + format

I wanted to store a value read from a file in a variable with a given format. I was doing the first step as follows : it0="$(cat ./myfile)" I thought the second step would work as: it0= ` printf "%6.3f\n" $it0 ` but it says "./curplot.sh: line 33: 0.035: command not found", although it...

4. Shell Programming and Scripting

cat redirect EOF missing text

Hello attempting to redirect out to create a startup script in solaris. The steps are working but the $1 entry is being left out. syntax below and content of output file below. cat > S99build << EOF > #!/bin/bash > case $1 in > 'start') > /usr/os-buildsol.sh > > ;; > esac > exit 0 >...

5. Shell Programming and Scripting

cat file with variable substitution

MyFile contains: ALTER TABLE $DBN.$TBN ADD $COL $TYP COMPRESS ($VAL); I need to cat the file and have it substitute all of the variables with their contents. cat MyFile does not work. The following works for the first line, but errors on the second line because of the paren: $ while read...

6. Shell Programming and Scripting

Moving cat values to a variable

I have a file created as ABC!DEF@2014.txt My if condition is based on 2014 so I need to move it to variable. So while I can do this on console screen - ls ABC* -l > test.txt cat test.txt | cut -f 2 -d "@" | cut -f 1 -d "." to get the value - 2014 I am a bit at loss how to achieve this...

7. UNIX for Dummies Questions & Answers

How to append a string by cat and redirect to other file?

Hi, when I do cat for kernel parameters cat /proc/sys/kernel/sem >> /etc/sysctl.conf 4096 4096 32 128 The above command working with out any doubt but I want to pass it like below, need to append "kernel.sem =" and pass it to /etc/sysctl.conf kernel.sem = 4096...

8. Shell Programming and Scripting

Cat files listed in text file and redirect to new directory with same filename

I have a directory that is restricted and I cannot just copy the files need, but I can cat them and redirect them to a new directory. The files all have the date listed in them. If I perform a long listing and grep for the date (150620) I can redirect that output to a text file. Now I need to...

9. UNIX for Beginners Questions & Answers

Carriage return with cat variable

Hi, I wish to know how to works the carriage return with cat.. As a picture often speaks better than words, my code below : #te=`cat text.txt` (I tried this, but the same..) te=$(cat text.txt) echo $te My file text.txt below: BLABLABLABLABLALBLA BLABLABLABLABLALBLA ...

10. Shell Programming and Scripting

Bash - Trying to cat a file that is a variable

Thank you in advance for looking at this, I've scoured the internet and can't find the answer I'm looking for!! - I am new at bash script so please bare with me!! I have a script where I've identified individual files within a folder, the filename is then stored as a variable ($filename):...

LEARN ABOUT DEBIAN

arp2ethers

ARP2ETHERS(8)						      System Manager's Manual						     ARP2ETHERS(8)

NAME

       arp2ethers - convert arpwatch address database to ethers file format

SYNOPSIS

       arp2ethers [ arp.dat file ]

DESCRIPTION

       arp2ethers  converts  the file /var/lib/arpwatch/arp.dat (or the file specified on the command line) into ethers(5) format on stdout.  Usu-
       ally arp.dat is an ethernet/ip database file generated by arpwatch(8).  The arpwatch daemon in Debian will create different arp.dat depend-
       ing on its configuration. All of them will be available at /var/lib/arpwatch/.

FILES

       /var/lib/arpwatch - default directory for arp.dat
       arp.dat - ethernet/ip address database

SEE ALSO

       arpwatch(8), ethers(5), rarp(8), arp(8),

BUGS

       Please send bug reports to arpwatch@ee.lbl.gov.

AUTHORS

       Original  version  by  Craig Leres of the Lawrence Berkeley National Laboratory Network Research Group, University of California, Berkeley,
       CA.

       Modified for the Debian Project by Peter Kelemen, with additions from Erik Warmelink.

       The current version is available via anonymous ftp:

	      ftp://ftp.ee.lbl.gov/arpwatch.tar.gz

       This manual page was contributed by Hugo Graumann.

																     ARP2ETHERS(8)

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Redirect to variable

Discussion started by: MrAd

2. UNIX for Dummies Questions & Answers

Using a variable inside a file to cat another.

Discussion started by: MaestroRage

3. Shell Programming and Scripting

cat > variable + format

Discussion started by: josegr

4. Shell Programming and Scripting

cat redirect EOF missing text

Discussion started by: juanb25