With script bash, read file line per line starting at the end Post: 302964785

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Hi, I have gps receiver log..its giving readings .like below Trying 127.0.0.1... Connected to localhost. Escape character is '^]'. GPSD,R=1 $GPGSV,3,1,11,08,16,328,40,11,36,127,00,28,33,283,39,20,11,165,00*71...

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Hi , I am trying to write an shell, which reads a text file (from a location) having a list of numbers of strictly 5 digits only ex: 33144 Now my script will check : 1) that each entry is only 5 digits & numeric only, no alphabets, & its not empty. 2)then it executes a shell script called...

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Hi all, I'm new in unix. Need some help here. I have a file called server.cfg which contains the servers name, if I don't want to run on that server, I'll put a "#" infront it. username1@hostname.com username2@hostname.com #username3@hostname.com #username4@hostname.com...

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Hi All, Am trying to write wrapper shell/bash script on a utility tool for which i need to pass 2 files as arugment to execute utility tool. Wraper script am trying is to do with above metion 2 files. utility tool accepts : a. userinfo file : which contains username b. item file : which...

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Shell script UNIX to read text file line by line

i have a text file as belows, it includes 2 columns, 1st is the column name, 2nd is the file_name data_file.txt column_name file_name col1 file1 col2 file2 col3 file1 col4 file1 col5 file2 now, i would like to...

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tac

TAC(1)								   User Commands							    TAC(1)

NAME

       tac - concatenate and print files in reverse

SYNOPSIS

       tac [OPTION]... [FILE]...

DESCRIPTION

       Write each FILE to standard output, last line first.

       With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -b, --before
	      attach the separator before instead of after

       -r, --regex
	      interpret the separator as a regular expression

       -s, --separator=STRING
	      use STRING as the separator instead of newline

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by Jay Lepreau and David MacKenzie.

REPORTING BUGS

       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report tac translation bugs to <http://translationproject.org/team/>

COPYRIGHT

       Copyright (C) 2017 Free Software Foundation, Inc.  License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This is free software: you are free to change and redistribute it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO

       rev(1)

       Full documentation at: <http://www.gnu.org/software/coreutils/tac>
       or available locally via: info '(coreutils) tac invocation'

GNU coreutils 8.28						   January 2018 							    TAC(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Print starting 3rd line until end of the file.

Discussion started by: smc3

2. Shell Programming and Scripting

shell script to read a line in gps receiver log file and append that line to new file

Discussion started by: gudivada213

3. Shell Programming and Scripting

bash: read file line by line (lines have '\0') - not full line has read???

Discussion started by: alex_5161

4. Shell Programming and Scripting

Grep from a starting line till the end of the file

Discussion started by: Mr. Zer0

5. Shell Programming and Scripting

Shell script to read a text file line by line & process it...

Discussion started by: new_to_shell

6. Shell Programming and Scripting

Shell script to read multiple options from file, line by line

Discussion started by: haggismn

7. UNIX for Advanced & Expert Users

Read file and skip the line starting with #

Discussion started by: beezy