Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Help with date in bash script for loop from YYYYMMDDHHMM Post 303036345 by Scrutinizer on Sunday 23rd of June 2019 11:27:36 PM
Old 06-24-2019
I don't know why it does not do that since it is all free format, possibly because it is not able to determine what part is the date and what constitutes time.

It does seem to work with a space before the time part, however:
Code:
date -d "20190308 1000 + 1 hour" '+%Y%m%d%H%M'

So to split the input you could for example try something like this:
Code:
$ datestr=201903081000
$ splitdatestr="${datestr%????} ${datestr#????????}"
$ printf "%s\n" "$datestr" "$splitdatestr"
201903081000
20190308 1000


Last edited by Scrutinizer; 06-24-2019 at 01:48 AM..
This User Gave Thanks to Scrutinizer For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

loop does not execute in bash script?

I have a very basic bash shell script, which has many "while... done; for .... done" loop clauses, like the following ~~ #!/bin/bash while blablalba; do .... done < /tmp/file for line in `cat blablabla`; do grep $line /tmp/raw ; done > /tmp/1; while blablalba2; do .... done <... (2 Replies)
Discussion started by: fedora
2 Replies

2. Shell Programming and Scripting

error in bash script 'if' loop

SEND_MESSAGE=test echo $SEND_MESSAGE if then echo `date` > update_dt_ccaps.lst echo "The file transfer failed" >> update_dt_ccaps.lst SEND_MESSAGE=false fi The above code is showing error in bash shell as : ./test: line 5: [: test: integer expression expected ... (2 Replies)
Discussion started by: DILEEP410
2 Replies

3. Shell Programming and Scripting

Getting error on for loop - bash script

Hi, I am working on bash script after a long time. I am getting error near done statement while running a for loop snippet. The error says "Syntax error near unexpcted token 'done'" please suggest what could be wrong. here is the snippet elements=${#option_arr} //an array of values... (1 Reply)
Discussion started by: arundhati_s
1 Replies

4. Shell Programming and Scripting

Expect script called in loop from Bash Script

Having issues with an expect script. I've been scripting bash, python, etc... for a couple years now, but just started to try and use Expect. Trying to create a script that takes in some arguments, and then for now, just runs a pwd command(for testing, final will be command I pass). Here is... (0 Replies)
Discussion started by: cbo0485
0 Replies

5. Shell Programming and Scripting

Bash script - loop question

Hi Folks, I have a loop that goes through an array and the output is funky. sample: array=( 19.239.211.30 ) for i in "${array}" do echo $i iperf -c $i -P 10 -x CSV -f b -t 50 | awk 'END{print '$i',$6}' >> $file done Output: 19.239.211.30 19.2390.2110.3 8746886 seems that when... (2 Replies)
Discussion started by: nitrohuffer2001
2 Replies

6. Shell Programming and Scripting

While loop with input in a bash script

I have the following while loop that I put in a script, demo.sh: while read rna; do aawork=$(echo "${rna}" | sed -n -e 's/\(...\)\1 /gp' | sed -f rna.sed) echo "$aawork" | sed 's/ //g' echo "$aawork" | tr ' ' '\012' | sort | sed '/^$/d' | uniq -c | sed 's/*\(*\) \(.*\)/\2: \... (3 Replies)
Discussion started by: faizlo
3 Replies

7. Shell Programming and Scripting

Loop through multiple files in bash script

Hi Everybody, I'm a newbie to shell scripting, and I'd appreciate some help. I have a bunch of .txt files that have some unwanted content. I want to remove lines 1-3 and 1028-1098. #!/bin/bash for '*.txt' in <path to folder> do sed '1,3 d' "$f"; sed '1028,1098 d' "$f"; done I... (2 Replies)
Discussion started by: BabyNuke
2 Replies

8. Shell Programming and Scripting

How to use grep in a loop using a bash script?

Dear all, Please help with the following. I have a file, let's call it data.txt, that has 3 columns and approx 700,000 lines, and looks like this: rs1234 A C rs1236 T G rs2345 G T Please use code tags as required by forum rules! I have a second file, called reference.txt,... (1 Reply)
Discussion started by: aberg
1 Replies

9. Shell Programming and Scripting

Bash directory loop and order by creation date?

Hello, how in bash i can get directory loop and order by creation date? THX! :) #!/bin/bash for folder in /home/test/* do if ; then echo $folder; fi (12 Replies)
Discussion started by: ZerO13
12 Replies

10. UNIX for Beginners Questions & Answers

Help with a bash loop script

Create a single bash script that does the following: a. Print out the number of occurrences for each motif that is found in the bacterial genome and output to a file called motif_count.txt b. Create a fasta file for each motif (so 3 in total) which contains all of the genes and their... (6 Replies)
Discussion started by: dre
6 Replies
PCT-SCANNER-SCRIPT(1)					      General Commands Manual					     PCT-SCANNER-SCRIPT(1)

NAME
pct-scanner-script - easy scan and create merged DjVu and PDF documents for archiving SYNOPSIS
pct-scanner-script [--help] DESCRIPTION
pct-scanner-script is a bash script and configuration system to easily scan documents and create a digital archiving. It can create DjVu PDF and JPEG outputs, in merged and individual files. It also has a configuration system where different configurations can be defined, making it easy to switch between configurations. Please use pct-scanner-script --help to find all program options, the complete help, and all examples. Features: - auto archiving in merged and individual DjVu, PDF, and JPEG files - auto and manual resume when scanning somehow fails - cascading configuration system, for easy customizing - easy command-line-style bash program, with useful options - archiving made possible with both adf and flatbed scanners - built for productivity and daily use - uses bash, scanadf and other mainstream processing tools - multilanguage commandline output OPTIONS
-h, --help, -? Show summary of options, help, and examples. DEBUGGING
This program is a helper script to easy scan and automated digital document archiving for normal and adf scanners. You can debug this script by running it as bash -x pct-scanner-script [options]. The script is just a nice wrapper for the scanadf, DjVu and PDF tools. SEE ALSO
scanadf(1), AUTHOR
pct-scanner-script and this manual page are written by: Jelle de Jong <jelledejong@powercraft.nl>. March 31, 2009 PCT-SCANNER-SCRIPT(1)
All times are GMT -4. The time now is 05:13 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy