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Answers to Beginners BSD, Linux, and UNIX shell scripting Frequently Asked Questions � This forum contains answers to frequently asked questions about how to use awk, bash, csh, ksh, perl, php, python, sed, sh, shell scripts, and other shell scripting languages. (Only Moderators and Administrators can add a thread to this forum. If you would like to make an addition to this forum, post your suggestion in the FAQ Submission Queue sub-forum.)

Sub-Forums: Email Antispam Techniques and Email Filtering, How do I send email?, New to Unix. Which books should I read?, Tips and Tutorials, Where do I download LINUX & UNIX?, FAQ Submission Queue

Fixed width file issue and...

by rbatte1

07-19-2017

286

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Thread / Thread Starter	Last Post	Replies	Views
README: General Purpose Date Script ( 1 2 3) Corona688 There must be thousands of one-off solutions scattered around this forum. GNU Date is so handy because it's general but if they're asking they probably don't have it. We have some nice scripts but they tend to need dates formatted in a very particular way. This is a rough approximation which...	02-27-2017 by Corona688	18	12,308
README: Vim tips and tricks ( 1 2 3 4 5) ungalnanban Vim Tips and Tricks Save and quit :w => Save :q => Exit as long as there have been no changes	02-13-2017 by ctsgnb	32	50,793
README: General Purpose XML Processing Corona688 I've been kicking this around for a while now, I might as well post it here. # yanx.awk v0.0.6, Tyler Montbriand, 2016. Yet another noncompliant XML parser ############################################################################### # XML is a pain to process in the shell, but people need it...	05-24-2016 by Corona688	2	3,546
README: Simple rules of the UNIX.COM forums: Neo SIMPLE RULES OF THE UNIX FORUMS: (1) No flames, shouting (all caps), sarcasm, bullying, profanity or arrogant posts. (2) No negative comments about others or impolite remarks. Be patient. No BSD vs. Linux vs. Windows or similar negative threads. (3) Refrain from idle chatter that does...	01-20-2013 by Neo	1	196,106

View my posts drew77 How can I view a list of my posts.?	17 Hours Ago by Neo	5	107
How to add following decimal point to a CSV value? ( 1 2) sash99 hi there I being trying to figure out way to add " .0" to an integer value in a csv using sed or awk with out success. just as a work around for 2147483647 32 bit limitation that influxdb is currently having the data base will accept values and work fine if it has the XXX.0 ...	17 Hours Ago by RudiC	7	102
Views How to replace a CRLF char from a variable length file in the middle of a string in UNIX? chandrath My sample file is variable length, with out any field delimiters. It has min of 18 chars length and the 'CRLF' is potentially between 12-14 chars. How do I replace this with a space? I still want to keep end of record, but just want to remove these new lines chars in the middle of the data. ...	1 Day Ago by wbport	3	64
Modify text file if found multiple pattern match for every line. ( 1 2) kttan Looking for help, i have input file like below and want to modify to expected output, if can without create additional file, hope can direct modify it. have 2 thing need do. 1st is adding a word (testplan generation off) after ! ! IPG: Tue Aug 07 14:31:17 2018 2nd is adding...	1 Day Ago by MadeInGermany	12	152
Tar file with newly created file dquake Hello guys thanks for this helpful forum. I'm new to scripting and doing a little script that dump a sql database with some extra files from a VM of the company I'm in, and create a tar archive to be saved on our serve. How can I have the tarball to be created with the files generated in the...	4 Days Ago by dquake	2	89
find pattern matches in consecutive lines in certain fields-awk jvoot I have a text file with many thousands of lines, a small sample of which looks like this: InputFile:PS002,003 D -1 5 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 6 6 -1 -1 -1 -1 0 509 0 PS002,003 PSQ 0 1 7 18 1 0 -1 1 1 3 -1 -1 ...	1 Week Ago by jvoot	5	220
Help with Split Command landrjos Hi All, I have a txt file which I would like to partition into 2 separate output files. I would like to partition the odd or even groups of 4 lines from the txt file. So I would like lines 1-4 to go to file1, and lines 5-8 to go to file2, and so on until the whole txt file is divided into two...	1 Week Ago by RudiC	1	81
Cron Job Issue ded325 My Friends I want to run a script only at the end of month.but i tried below cront entry its not working. pls help 0 9 28-31 ] && /usr/bin/bash /u01/app/scripts/CX-eom.shOs Details: AIX 7.1.0.0 Please use CODE tags as required by forum rules!	1 Week Ago by ded325	5	104
How to sort these files? jeisma Hi, An ls outputs this -rw-rw-rw- 1 jeisma users 0 Aug 8 09:24 file.d1 -rw-rw-rw- 1 jeisma users 0 Aug 8 09:24 file.d10 -rw-rw-rw- 1 jeisma users 0 Aug 8 09:24 file.d11 -rw-rw-rw- 1 jeisma users 0 Aug 8 09:25 file.d2...	1 Week Ago by jeisma	3	92
Getting error while using date as a variable in expect ( 1 2) scriptor Hi getting error when i am saving date command output in a variable and then using the same variable in expect #!/usr/bin/expect set DATE spawn sftp AUT#XX.XX.XX.XX spawn echo $DATE expect "password:" send "AT123\n" expect "sftp>" send "cd /home/ \r"	1 Week Ago by scriptor	12	266
How to boot partition from Grub Minimal_BASH? veravera Hi, someone knows how can I boot my OS or cdrom from a Grub Minimal_Bash? :confused: sorry, I�m a dummy I explain, when I start loading the OS, I get errors, and ends up in the grub bash. This is the minimal_bash and I have no idea of any command. It tells me "unknow partition". The problem is...	2 Weeks Ago by veravera	0	99
How Do I FTP System Files to Different Server? ( 1 2 3 4 5 6 ... Last Page) spock9458 Hello, I have a legacy system that is running on SCO OpenServer 5.0.6, and the hardware is becoming a little sketchy. I replaced the hard drive about a year ago, and was able to come back from a tape backup of my entire system. I have been successful with building a VM with VMware Workstation,...	2 Weeks Ago by jgt	42	768
Copy txt file into excel vbscript supernono06 Hi everybody, I am working on Windows 10 and using cygwin. I have a vbscript as follows: Set objExcel = CreateObject("Excel.Application") objExcel.Visible = True Set wb1 = objExcel.Workbooks.open("\\files\share\path\file1.xlsx") wb1.Worksheets("Sheet1").Range("A1:CR89").Clear Set...	2 Weeks Ago by supernono06	0	57
Compare between two files with condition ( 1 2) dragonfly85 Hello there. I am trying to compare two files. File1 Austria Mobile 1 United Kingdom Mobile 1 ...	2 Weeks Ago by dragonfly85	12	274
Question on bash command line ( 1 2) kraljic OS : RHEL / Oracle Linux 6.8 In bash shell, how can I replace a character under the cursor with another character ? In the below example , after I typed the following line, I realized that I meant 7013 and not 2013. So I move the cursor to the left and keep it on top of 2 (of 2013) and I want...	2 Weeks Ago by kraljic	7	183
Yum install ClamAV missing libraries ottorocket18 Hello, I'm currently following a tutorial for ClamAV with a lambda function. The tutorial has a shell script with the following: #!/usr/bin/env bash set -e LAMBDA_FILE="lambda.zip" rm -f ${LAMBDA_FILE}	2 Weeks Ago by ottorocket18	1	186
No space on device ( 1 2) kkm hi all, while searching solution to an error, i found this forum and i have just joined the forum. i am using Unix and getting the following error. kindly help to resolve. -bash: cannot create temp file for here-document: No space left on device regards	2 Weeks Ago by kkm	9	328
Wild char getting expanded in echo arunkumar_mca Hi All, I am having a issue in a script. I am trying to execute a select * from a scirpt to a database and printing the the sql string. The * in the sqltring is printing all the files in the directory. How to handle it ? .. .. sql="select * from emp" execute ($sql) echo $sql	3 Weeks Ago by arunkumar_mca	6	320
How to sftp fron UNIX to window server using expect? scriptor HI I am using expect to transfer the file from unix system to windows server. however it is not taking the password. same I tried without script also but still it is not accepting the password. when I tried with winscp tool it accepting the password. I am not sure where I am doing wrong ...	3 Weeks Ago by scriptor	4	152
How to iterate Grep via all patterns provided in an input file? nsai When I use the following grep command with options -F and -f, its just displaying the text related to only the last pattern. Command: $ grep -f pattern_file.txt input_file.txt Output: doc-C2-16354 Even the following command yields the same output: Command: $ grep -Ff pattern_file.txt...	3 Weeks Ago by nsai	6	224
No SMS notifications once ppp up antc Hi all, I have an Siemens IoT2020 with a Sim7000e cellular board that I connect via USB to the board and connect to Telstra Cat-M1 network. I can send and receive SMS and do so using Node-Red but can also do with Minicom etc. When connected I get : root@iot2000:~# dmesg \| grep USB ACPI:...	3 Weeks Ago by antc	0	124
Passing a second argument MIA651 I am trying to pass a second argument like so: if ] then export ARG2=$2 else message "Second argument not specified: USAGE - $PROGRAM_NAME ARG1 ARG2" checkerror -e 2 -m "Please specify if it is a history or weekly (H or W) extract in the 2nd argument" fi	3 Weeks Ago by Corona688	4	158
Find for files within a list of subfolders jcdole Helo Is there a better way to search within a list of subfolders : A_START_PATH="/data_1/data_2" # # dir2, dir3, dir6, ..... dir59 exists # A_LIST="$A_START_PATH/dir1 $A_START_PATH/dir4 $A_START_PATH/dir5" find "$A_LIST" -type f -name"*.txt" Now searching for all files in any subdirs...	3 Weeks Ago by jcdole	2	182
Copy directory withOUT recursion ( 1 2) chebarbudo Hi, I cannot find a way to copy a directory to another location with all attributes (mode, ownership, timestamps) but withOUT recursion (after so many years of working with Linux). Say I want to create /home/jail/tmp exactly like /tmp but with nothing in it. Here is what I tried: ...	3 Weeks Ago by MadeInGermany	7	280
Print byte position of extended ascii character ( 1 2 3 4 5 6) rosebud123 Hello, I am on AIX. When I encounter extended ascii characters and special characters on a file I need to print.. Byte position, actual character and line number. Is there a simple command that can give me the above result ?	3 Weeks Ago by rosebud123	38	824
I can not understand the command from the systemd? alekseev journalctl --since "tomorrow" By idea to show magazines from tomorrow. As it is illogical. Tell me what is the essence of the team with the key tomorrow? Code tags please	3 Weeks Ago by neutronscott	1	215
Solaris, grant user to kill another process dsyberia the task is grant user1 to kill another (for example user2) process. My steps: by root: usermod -P "Process Management" user1 login user1 user1@server (~) pfexec kill <PID> the result is: ksh: <PID>: not found or user1@server (~) pfexec pkill <PID> the result: nothing happens, still...	4 Weeks Ago by dsyberia	0	218
Sum talk time in bash dragonfly85 Hello, guys ! I need a little help :) Lets say i have log files with "n" calls like this one : """"" <+825080825462>","+825080825462","60197774588","from-internal", "SIP/518-00013e14","SIP/eu.test.com_outgoing-00013e15","Dial",...	4 Weeks Ago by dragonfly85	4	191
Remove the backbone ip and use it in a different way? hyacinth This has been resolved.	4 Weeks Ago by hyacinth	0	150
awk assistance - Comparing 2 csv files ( 1 2) tirmUK Hello all, I have searched high and low for a solution to this, many have come really close but not quite what I'm after. I have 2 files. One contains GUID's, for example: 8121E002-96FE-4C9C-BC5A-6AFF20DACECD 84468F30-F3B7-418B-81F0-0908E80792BF A second file, contains a path to the...	4 Weeks Ago by tirmUK	8	313
Syntax error C shell dulceC Hello, I have a newbe syntax error but I cant find it syntax error: unexpected end of file #!/bin/csh	4 Weeks Ago by MadeInGermany	1	161
Copy columns from one file into another and get sum of column values and row count Tahir_M I have a file abc.csv, from which I need column 24(PurchaseOrder_TotalCost) to get the sum_of_amounts with date and row count into another file say output.csv abc.csv- UTF-8,,,,,,,,,,,,,,,,,,,,,,,,, ...	4 Weeks Ago by Tahir_M	6	196
i am working on migration project, 8.5 sever able to embedded HTML report to mail body with below sy JatinInfy i am working on migration project, 8.5 sever able to embedded HTML report to mail body with below syntax. $ mail -s "subject "recipient mail -- -f sender mail < xyz.html But above syntax is not working in 11.5 server and changed to below. $ mail -s "subject" -r recipient mail sender mail <...	4 Weeks Ago by JatinInfy	0	121
Find duplicates in file with line numbers vatigers Hello All, This is a noob question. I tried searching for the answer but the answer found did not help me . I have a file that can have duplicates. 100 200 300 400 100	4 Weeks Ago by Don Cragun	4	243
Compare sum of two columns if variance is zero do nothing else send an email ( 1 2 3 4) Tahir_M 11☺Hi, I have to data sets: One is in .txt format and other is in .csv format, please refer below two outputs from two files. File1.txt SOURCE PAYDATE TOTAL_DOLLARS RECORD_COUNT ASSET 05/25/2018 247643.94 ASSET 06/20/2018 ...	07-13-2018 by Tahir_M	27	764
Change - Password expiry Reset (Boot) ( 1 2) ru4n1 I have been searching the web for the answer to this question but without joy. Hopefully, someone here can point me in the right direction... We have a number of application OS accounts which require to be set with password non-expiry via the chage command, such as for example... chage -M 0...	07-12-2018 by RudiC	7	345
Why does a fakechroot exist? ( 1 2) sreyan32 I am really confused as to why a tool like fakechroot exists and what does it do. Chroot is an ability only for root users, correct? Then a tool that allows to bypass that is clearly a security flaw, correct? When and why would you need something like this? Is there any relation between...	07-12-2018 by Don Cragun	7	289
Cron Job Issue ded325 Dear Members Seeking you help on my issue. this script need to run on every end of month.i configured as below. but it runs everyday. why 0 9 28-31 * * ] && /usr/bin/bash /u01///scripts/e.sh	07-12-2018 by Don Cragun	3	183
Replace string until 3Rd occurance of forward slash(/) himanshupant I have a file abc.txt which has records like 456 /home/fgg/abdc.txt 3567 /home/fdss/vfgb.txt 23 /home/asd/dfght.txt I WANT TO REMOVE STRING UNTIL 3RD OCCURANCE OF FORWARD SLASH Output should be like	07-11-2018 by RudiC	5	184
File name with yyyymmddhhmi Prabhakar K Hi Masters, I have script which is having filename like this fileName=Device_manumodel_DATETIME.csv . in another server client will put files like Device_manumodel_yyyymmddhhmi.csv format. every 30 mins script will run and took the file from client server. ...	07-11-2018 by rbatte1	3	171

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