cat vs head vs readline get variable from txt file Post: 302307547

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1. Shell Programming and Scripting

variable= 'cat file|wc -l' String problems

Hi, does anybody knows about wc -l, how to transform it inot a just number? this script ALWAYS executes the command3!!, However, the value of BMU_RUNNING is 1 case $BMU_RUNNING in *0) command1 ;; *1) command 2;; *)command 3;; esac The...

2. UNIX for Dummies Questions & Answers

grep/cat/more -- search in a txt file and display content from a specific "keyword"

Hi, I have a .txt file Sample: ===================== NEXT HOST ===================== AEADBAS001 ip access-list extended BLA_Incoming_Filter ip access-list extended BLA_Outgoing_Filter access-list 1 permit xxxxxxxxxxxxxx access-list 2 permit xxxxxxxxxxxxxx =====================...

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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...

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for i in `cat myname.txt` && for y in `cat yourname.txt`

cat myname.txt John Doe I John Doe II John Doe III ----------------------------------------------------------------------- for i in `cat myname.txt` do echo This is my name: $i >> thi.is.my.name.txt done ----------------------------------------------------------------------- cat...

5. Shell Programming and Scripting

Help awking a 'head -1 file.txt' input

Hi there, my ksh script collects a procstack trace for a particular pid and then greps it by a transaction id to find out the pthread ID: ---------- tid# 1876087 (pthread ID: 4466) ---------- So the pthread ID I want is 4466 in this case, and it is assighed to the variable $pthread....

6. 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...

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assigning variable in txt file

Hi all, One of my txt file has common format like . And I need to manually assign variable to "/a/b/c/file1/txt" , which has common text before "Calculated summary file:". I wonder if I can use some command to do that for me, that it read the file and check for that comonn text and assign...

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Cannot open txt file in UNIX using cat utility

Hi, I am not being able to open txt files with 'cat'. One thing to mention is, the filenames start with #. I guess one can have a unix filename that starts with a special/wildcard character. I have filenames starting with @ and they are opening perfectly with cat.

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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 BSD

go

GO(1)							      General Commands Manual							     GO(1)

NAME

       go - tool for managing Go source code

SYNOPSIS

       go command [arguments]

DESCRIPTION

       The  Go	distribution  includes a command, named go, that automates the downloading, building, installation, and testing of Go packages and
       commands.

COMMANDS

       Each command is documented in its own manpage. For example, the build command is documented in go-build(1). The commands are:

       build  compile packages and dependencies

       clean  remove object files

       doc    run godoc on package sources

       env    print Go environment information

       fix    run go tool fix on packages

       fmt    run gofmt on package sources

       get    download and install packages and dependencies

       install
	      compile and install packages and dependencies

       list   list packages

       run    compile and run Go program

       test   test packages

       tool   run specified go tool

       version
	      print Go version

       vet    run go tool vet on packages

EXAMPLES

       TODO

SEE ALSO

       go-build(1), go-clean(1).

AUTHOR

       This manual page was written by Michael Stapelberg <stapelberg@debian.org>, for the Debian project (and may be used by others).

								    2012-05-13								     GO(1)

9 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

variable= 'cat file|wc -l' String problems

Discussion started by: Santiago

2. UNIX for Dummies Questions & Answers

grep/cat/more -- search in a txt file and display content from a specific "keyword"

Discussion started by: I-1

3. UNIX for Dummies Questions & Answers

Using a variable inside a file to cat another.

Discussion started by: MaestroRage

4. Shell Programming and Scripting

for i in `cat myname.txt` && for y in `cat yourname.txt`

Discussion started by: danimad

5. Shell Programming and Scripting

Help awking a 'head -1 file.txt' input

Discussion started by: tmf33uk

6. Shell Programming and Scripting

cat file with variable substitution

Discussion started by: Phil27577