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Powershell one-line script to remove the bracketed date from filenames

Removes the annoying filehistory filename default of adding a really long UTC time and date string to every single file. Non recursive so you will have to run this per directory.
This is sample output - yours may be different.
0

Get-ChildItem -Recurse | Where-Object { $_.Name -match " ?$\d\d\d\d_\d\d_\d\d \d\d_\d\d_\d\d UTC$" } | Rename-Item -NewName { $_.Name -replace " ?$\d\d\d\d_\d\d_\d\d \d\d_\d\d_\d\d UTC$", ""}

JohnnyVegas · 2020-04-17 20:20:44 28
Downmix first audio stream from 7.1 to 5.1 keeping all other streams

Useful for Roku which does not support 7.1. Useful resources: - https://trac.ffmpeg.org/wiki/Map - https://trac.ffmpeg.org/wiki/Encode/HighQualityAudio - https://superuser.com/questions/852400/properly-downmix-5-1-to-stereo-using-ffmpeg
This is sample output - yours may be different.
0

ffmpeg -i in.mkv -map 0 -c copy -c:a:0 aac -ac:a:0 6 out.mkv

yoyoyojomo · 2020-04-16 03:47:17 20
Add timestamp of photos created by the “predictive capture” feature of Sony's Xperia camera app at the beginning of the filename

The “predictive capture” feature of Sony's Xperia camera app hides the date stamp deeply inside the filename. This command adds another date stamp at the beginning of the filename. Show Sample Output
This is sample output - yours may be different.
```
'DSCPDC_0000_BURST20191215123205830.JPG' -> '2019-12-15 DSCPDC_0000_BURST20191215123205830.JPG'
'DSCPDC_0000_BURST20200119191047162.JPG' -> '2020-01-19 DSCPDC_0000_BURST20200119191047162.JPG'
```
0

(setopt CSH_NULL_GLOB; cd /path/to/Camera\ Uploads; for i in DSCPDC_000*; do mv -v $i "$(echo $i | perl -lpe 's/(DSCPDC_[0-9]{4}_BURST)([0-9]{4})([0-9]{2})([0-9]{2})/$2-$3-$4 $1$2$3$4/')"; done)

langec · 2020-04-12 06:20:59 23
Add date stamp to filenames of photos by Sony Xperia camera app

Sony's Xperia camera app creates files without time-stamped names. Thus, after deleting files on the phone, the same names will be reused. When uploading the photos to a cloud storage, this means that files will be overwritten. Running this command after every sync of uploaded photos with the computer prevents this. Show Sample Output
This is sample output - yours may be different.
```
'DSC_0075.JPG' -> '2020-04-11 DSC_0075.JPG'
'DSC_0076.JPG' -> '2020-04-11 DSC_0076.JPG'
```
1

(setopt CSH_NULL_GLOB; cd /path/to/Camera\ Uploads; for i in DSC_* MOV_*; do mv -v $i "$(date +%F -d @$(stat -c '%Y' $i)) $i"; done)

langec · 2020-04-12 06:15:07 27

List SAN Domains for a certificate Show Sample Output

echo | openssl s_client -connect google.com:443 2>&1 | openssl x509 -noout -text | awk -F, -v OFS="\n" '/DNS:/{x=gsub(/ *DNS:/, ""); $1=$1; print $0}'

shadyabhi · 2020-04-10 06:56:51 17

Monitor ETA using pv command

You can get an approximate idea of how long your data export might take. Show Sample Output
This is sample output - yours may be different.
```
[==================================>  ] 60% ETA 0:00:01
```
-1

mysqldump --login-path=mypath sbtest sbtest4 | pv --progress --size 200m -t -e -r -a > dump.sql

shantanuo · 2020-03-30 09:15:16 53
List only empty directories and delete safely (=ask for each)

Will delete empty directories and sub-directories (hideen too = whose names are starting with dot .). Used 'rm' command instead of 'rmdir' to give the possibility of asking for confirmation before deleting i.e. it is not wise do delete all empty directories in /etc folder. Replace dot in 'find .' with any for other starting directory instead of current. in 'rm -i -R' 'i' stands for ask before delete and 'R' for delete folder recursively or folder itself if it is empty
This is sample output - yours may be different.
0

find . -type d -empty -exec rm -i -R {} \;

knoppix5 · 2020-03-29 13:12:21 28
find all executable files across the entire tree

I can think of using this command after compiling an downloaded source from anywhere as an easy way to find all executable products. We usually issue the find command (without arguments) to list the full paths of all directories and sub-directories and files in the entire current tree. Similar command is tree -aicfnF
This is sample output - yours may be different.
1

find -executable -type f

knoppix5 · 2020-03-29 11:46:18 29

Remove all cached images for icons related to your profile

Run inside Command Prompt (cmd.exe) as admin. Note that you must close explorer.exe first, and even so some files will not be deleted, will say "Access is denied." To definitely delete them enter with another admin user or from other operating system and access the drive. Show Sample Output

DEL /F /S /Q /A %LocalAppData%\Microsoft\Windows\Explorer\thumbcache_*.db

bugmenot · 2020-03-27 16:53:23 18

List packages manually installed with process currently running

Sometimes we install programs, we forget about them, and they stay there wasting RAM. This one-liner try to find them. Show Sample Output
This is sample output - yours may be different.
```
atom
virtualbox
bluez
mosquitto
teamviewer
```
1

ps -eo cmd | awk '{print $1}'| sort -u | grep "^/" | xargs dpkg -S 2>/dev/null | awk -F: '{print $1}' | sort -u | xargs apt-mark showmanual

pabloab · 2020-03-26 06:16:45 18
convert raw camera image to jpeg

raw image created by canon digital camera. Install using apt-get install ufraw
This is sample output - yours may be different.
0

for i in *.CR2; do ufraw-batch $i --out-type=jpeg --output $i.jpg; done;

shantanuo · 2020-03-22 03:08:23 24
Calculate pi to an arbitrary number of decimal places
This is sample output - yours may be different.
3

bc -l <<< "scale=1000; 4*a(1)"

cryptology_codes · 2020-03-11 15:58:21 17
Create POSIX tar archive

tar(1) and cpio(1) are not fully platform agnostic, although their file formats are specified in POSIX.1-2001. As such, GNU tar(1) might not be able to extract a BSD tar(1) archive, and ivce versa. pax(1) is defined in POSIX.1-2001. To extract an archive: pax -rf archive.tar
This is sample output - yours may be different.
2

pax -wf archive.tar /path

atoponce · 2020-03-06 13:56:46 12
Backup with versioning
This is sample output - yours may be different.
0

& 'C:\cwRsync_5.5.0_x86_Free\bin\rsync.exe' --force --ignore-errors --no-perms --chmod=ugo=rwX --checksum --delete --backup --backup-dir="_EVAC/$(Get-Date -Format "yyyy-MM-dd-HH-mm-ss")" --whole-file -a -v "//MyServer/MyFolder" "/cygdrive/c/Backup"

pascalv · 2020-03-06 10:17:42 13
Linux system calls of MySQL process
This is sample output - yours may be different.
0

strace -c -p $(pidof -s mysqld) -f -e trace=all

shantanuo · 2020-02-27 03:35:17 43
mysql status

cron entry to record mysql status every minute
This is sample output - yours may be different.
0

mysqladmin status >> /home/status.txt 2>> /home/status_err.txt

shantanuo · 2020-02-19 10:58:27 20
add a mysql user

username is dba and password is dba123
This is sample output - yours may be different.
0

grant all on *.* to 'dba'@'localhost' identified by 'dba123' with grant option;

shantanuo · 2020-02-19 10:56:07 12
find and remove old compressed backup files

remove all compressed files in /home/ folder not created in the last 10 days
This is sample output - yours may be different.
1

find /home -type f $ -name "*.sql.gz" -o -name "*.tar.gz" -mtime +10 $ -exec rm -rf {} \;

shantanuo · 2020-02-19 10:49:28 17
find and remove old backup files

remove all files in /home/ folder that starts with bk_all_dbProdSlave and not created in the last 2 days
This is sample output - yours may be different.
0

find /home/ -name bk_all_dbProdSlave_\* -mtime +2 -exec rm -f {} \;

shantanuo · 2020-02-19 10:47:34 13
InnoDB related parameters
This is sample output - yours may be different.
0

mysqladmin variables | egrep '(innodb_log_file|innodb_data_file)'

shantanuo · 2020-02-19 10:24:52 12
mysql backup utility
This is sample output - yours may be different.
0

mysqlbackup --port=3306 --protocol=tcp --user=dba --password=dba --with-timestamp --backup-dir=/tmp/toback/ --slave-info backup-and-apply-log --innodb_data_file_path=ibdata1:10M:autoextend --innodb_log_files_in_group=2 --innodb_log_file_size=5242880

shantanuo · 2020-02-19 10:24:15 13
port forwarding

pem file used by AWS servers for additional security
This is sample output - yours may be different.
1

ssh -L8888:localhost:80 -i nov15a.pem ubuntu@123.21.167.60

shantanuo · 2020-02-19 10:20:18 13
check mysql capacity to handle traffic
This is sample output - yours may be different.
-1

mysqlslap --query=/root/select_query_cp.sql --concurrency=10 --iterations=5 --create-schema=cvts1

shantanuo · 2020-02-15 10:40:39 12
show the difference
This is sample output - yours may be different.
2

diff file1 file2 --side-by-side --suppress-common-lines

shantanuo · 2020-02-15 10:38:44 34
Change values from 0 to 100
This is sample output - yours may be different.
0

awk '{if ($3 =="LAN" && $5 == "0.00" ) print $1, $2, "LAN", "288", "100.00"; else print $1 ,$2, $3, $4, $5 }' sla-avail-2013-Feb > sla-avail-2013-Feb_final

shantanuo · 2020-02-15 10:37:44 10
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port forwarding

pem file used by AWS servers for additional security

run a command whenever a file is touched

This is useful if you'd like to see the output of a script while you edit it. Each time you save the file the command is executed. I thought for sure something like this already exists - and it probably does. I'm on an older system and tend to be missing some useful things. Examples: $ ontouchdo yourscript 'clear; yourscript somefiletoparse' Edit yourscript in a separate window and see new results each time you save. $ ontouchdo crufty.html 'clear; xmllint --noout crufty.html 2>&1 | head' Keep editing krufty.html until the xmllint window is empty. Note: Mac/bsd users should use stat -f%m. If you don't have stat, you can use perl -e '$f=shift; @s=stat($f); print "$s[9]\n";' $1

Monitor Linux/MD RAID Rebuild

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

PDF simplex to duplex merge

Joins two pdf documents coming from a simplex document feed scanner. Needs pdftk >1.44 w/ shuffle.

list files recursively by size

Recover cvs ": no such repository" error

Clone current directory into /destination verbosely

Copy every file from current directory to destination preserving modification time.

Create a simple video contact sheet using the vcs bash script

Assumes you've downloaded Toni Corvera's vcs script (http://p.outlyer.net/vcs), have it in your PATH, and have installed the script's dependencies. Generates a video contact sheet of 24 thumbnails and 3 thumbnails per column. The bold font and white-on-black color scheme keeps the text readable at the chosen 70% JPEG compression quality, which keeps the file size at a manageable level. You can go even lower with the quality and get a good looking result.

Run a command if file/directory changes

Example: $ runonchange /etc/nginx nginx -t Ignores vim temp files. Depends on 'inotify-tools' for monitoring of file changes. Alternative to tools like 'entr', 'watchr'.

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