I am trying to make some workaround to solve a problem.
We have a gtk+ program that call a bash script who calls rdesktop.
In a machine, we discover that the rdesktop call need on extra parameter...
Since i didnt write anything of this code, and i can modify the GTK part of the problem, i can only edit the bash script that make the middle call between the calls.
i have a variable called CMD with something that look like:
rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r printer:HP_Officejet_Pro_8600 -a 16 -u -p -d -g 80% 192.168.0.5
i need to "live edit" this line for when the printer parameter exists, it append ="MS Publisher Imagesetter" after the printer name.
The best i accompplish so far is
ladb#luisdesk ~ $ input="rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r printer:HP_Officejet_Pro_8600 -a 16 -u -p -d -g 80% 192.168.0.5"
ladb#luisdesk ~ $ echo $input | sed s/'printer:.*a /=\"MS Publisher Imagesetter\" '/
Which return me:
rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r ="MS Publisher Imagesetter" 16 -u -p -d -g 80% 192.168.0.5
Almost this, but i need to append the string, not replace it.
help?
Edit: i pasted incomplete exemples. fixed
Edit2:
With the help of who respond, i end up with
echo "$input" | sed 's/\(printer:\)\([^ ]*\)/\1\2="MS Publisher Imagesetter"/'
If you want the output to look like:
rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r printer:"HP_Officejet_Pro_8600 MS Publisher Imagesetter" -a 16 -u -p -d -g 80% 192.168.0.5
This sed will do, it matches the printer: part first then the existing printer name and quotes both, if not you can adjust the replacement
variables to put the quotes/spacing where you want:
input="rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r printer:HP_Officejet_Pro_8600 -a 16 -u -p -d -g 80% 192.168.0.5"
echo "$input" | sed 's/\(printer:\)\([^ ]*\)/\1"\2 MS Publisher Imagesetter"/'
output:
rdesktop -x m -r disk:USBDISK=/media -r disk:user=/home/user/ -r printer:"HP_Officejet_Pro_8600 MS Publisher Imagesetter" -a 16 -u -p -d -g 80% 192.168.0.5
You can use this:
sed 's/printer:[^=]\+=/\0 "MS Publisher Imagesetter"/' <<< "$input"
The \0 in the replacement pattern outputs the match itself.
Related
I want to buffer all messages of a subscription during processing publish messages.
The reason is a firmware update over MQTT. I want to send data with crc and the microcontroller have to verify the content and need to answer with new address pointer.
For now, i got it working without any interaction from the microcontroller. If size doesn't fit, or mc is not online, my bash script sends all the data of the binary file into the nirvana.
If I publish a message and subscribe directly after the publish, it is possible to lose an answer very easily.
But I'm not so experienced with bash and I need some suggestions how to do this...
This is what I have:
mosquitto_pub -h $MQTT_SERVER -t "spiffs/${client_name}/file_info" -m "$binary_file" -p 8883 -i "fw_server" --cafile server-cert.pem -d --insecure -u $MQTT_USER -P $MQTT_PW
mosquitto_sub -h $MQTT_SERVER -p 8883 -t "+/${client_name}/#" -i "fw_server" --cafile server-cert.pem -d --insecure -u $MQTT_USER -P $MQTT_PW | while read -r payload
do
fp_jq_rspCode=".upload.fp" # file pointer
address=$(echo $payload | jq -r $fp_jq_rspCode)
echo "${payload}" | jq -c '.[]'
echo "address pointer:$address"
c=${address}
addr=$(printf '%08x' "$c")
content=$(xxd -p -c $payload_size -l $payload_size -seek $c $binary_file)
length=`expr length "$content"`
len=$(printf '%04x' "$length")
crc32=$(echo -n "$content" | gzip -c | tail -c8 | hexdump -n4 -e '"%u"')
crc32=$(printf '%08x' "$crc32")
echo "$addr $len $content $crc32"
message=$(printf '%08x%04x%s%s' "$c" "$length" "$content" "$crc32")
mosq=$(mosquitto_pub -h $MQTT_SERVER -t "spiffs/${client_name}/upload" -m "$message" -p 8883 -i "fw_server" --cafile server-cert.pem -d --insecure -u $MQTT_USER -P $MQTT_PW)
done
I'm trying to run a script for pulling finance history from yahoo. Boris's answer from this thread
wget can't download yahoo finance data any more
works for me ~2 out of 3 times, but fails if the crumb returned from the cookie has a "\" character in it.
Code that sometimes works looks like this
#!usr/bin/sh
symbol=$1
today=$(date +%Y%m%d)
tomorrow=$(date --date='1 days' +%Y%m%d)
first_date=$(date -d "$2" '+%s')
last_date=$(date -d "$today" '+%s')
wget --no-check-certificate --save-cookies=cookie.txt https://finance.yahoo.com/quote/$symbol/?p=$symbol -O C:/trip/stocks/stocknamelist/crumb.store
crumb=$(grep 'root.*App' crumb.store | sed 's/,/\n/g' | grep CrumbStore | sed 's/"CrumbStore":{"crumb":"\(.*\)"}/\1/')
echo $crumb
fileloc=$"https://query1.finance.yahoo.com/v7/finance/download/$symbol?period1=$first_date&period2=$last_date&interval=1d&events=history&crumb=$crumb"
echo $fileloc
wget --no-check-certificate --load-cookies=cookie.txt $fileloc -O c:/trip/stocks/temphistory/hs$symbol.csv
rm cookie.txt crumb.store
But that doesn't seem to process in wget the way I intend either, as it seems to be interpreting as described here:
https://askubuntu.com/questions/758080/getting-scheme-missing-error-with-wget
Any suggestions on how to pass the $crumb variable into wget so that wget doesn't error out if $crumb has a "\" character in it?
Edited to show the full script. To clarify I've got cygwin installed with wget package. I call the script from cmd prompt as (example where the script above is named "stocknamedownload.sh, the stock symbol I'm downloading is "A" from the startdate 19800101)
c:\trip\stocks\StockNameList>bash stocknamedownload.sh A 19800101
This script seems to work fine - unless the crumb returned contains a "\" character in it.
The following implementation appears to work 100% of the time -- I'm unable to reproduce the claimed sporadic failures:
#!/usr/bin/env bash
set -o pipefail
symbol=$1
today=$(date +%Y%m%d)
tomorrow=$(date --date='1 days' +%Y%m%d)
first_date=$(date -d "$2" '+%s')
last_date=$(date -d "$today" '+%s')
# store complete webpage text in a variable
page_text=$(curl --fail --cookie-jar cookies \
"https://finance.yahoo.com/quote/$symbol/?p=$symbol") || exit
# extract the JSON used by JavaScript in the page
app_json=$(grep -e 'root.App.main = ' <<<"$page_text" \
| sed -e 's#^root.App.main = ##' \
-e 's#[;]$##') || exit
# use jq to extract the crumb from that JSON
crumb=$(jq -r \
'.context.dispatcher.stores.CrumbStore.crumb' \
<<<"$app_json" | tr -d '\r') || exit
# Perform our actual download
fileloc="https://query1.finance.yahoo.com/v7/finance/download/$symbol?period1=$first_date&period2=$last_date&interval=1d&events=history&crumb=$crumb"
curl --fail --cookie cookies "$fileloc" >"hs$symbol.csv"
Note that the tr -d '\r' is only necessary when using a native-Windows jq mixed with an otherwise native-Cygwin set of tools.
You are adding quotes to the value of the variable instead of quoting the expansion. You are also trying to use tools that don't know what JSON is to process JSON; use jq.
wget --no-check-certificate \
--save-cookies=cookie.txt \
"https://finance.yahoo.com/quote/$symbol/?p=$symbol" \
-O C:/trip/stocks/stocknamelist/crumb.store
# Something like thist; it's hard to reverse engineer the structure
# of crumb.store from your pipeline.
crumb=$(jq 'CrumbStore.crumb' crumb.store)
echo "$crumb"
fileloc="https://query1.finance.yahoo.com/v7/finance/download/$symbol?period1=$first_date&period2=$last_date&interval=1d&events=history&crumb=$crumb"
echo "$fileloc"
wget --no-check-certificate \
--load-cookies=cookie.txt "$fileloc" \
-O c:/trip/stocks/temphistory/hs$symbol.csv
I am trying to automate a procedure where the system will fetch the contents of a file (1 Url per line), use wget to grab the files from the site (https folder) and then remove the line from the file.
I have made several tries but the sed part (at the end) cannot understand the string (I tried escaping characters) and remove it from that file!
cat File
https://something.net/xxx/data/Folder1/
https://something.net/xxx/data/Folder2/
https://something.net/xxx/data/Folder3/
My line of code is:
cat File | xargs -n1 -I # bash -c 'wget -r -nd -l 1 -c -A rar,zip,7z,txt,jpg,iso,sfv,md5,pdf --no-parent --restrict-file-names=nocontrol --user=test --password=pass --no-check-certificate "#" -P /mnt/USB/ && sed -e 's|#||g' File'
It works up until the sed -e 's|#||g' File part..
Thanks in advance!
Dont use cat if it's posible. It's bad practice and can be problem with big files... You can change
cat File | xargs -n1 -I # bash -c
to
for siteUrl in $( < "File" ); do
It's be more correct and be simpler to use sed with double quotes... My variant:
scriptDir=$( dirname -- "$0" )
for siteUrl in $( < "$scriptDir/File.txt" )
do
if [[ -z "$siteUrl" ]]; then break; fi # break line if him empty
wget -r -nd -l 1 -c -A rar,zip,7z,txt,jpg,iso,sfv,md5,pdf --no-parent --restrict-file-names=nocontrol --user=test --password=pass --no-check-certificate "$siteUrl" -P /mnt/USB/ && sed -i "s|$siteUrl||g" "$scriptDir/File.txt"
done
#beliy answers looks good!
If you want a one-liner, you can do:
while read -r line; do \
wget -r -nd -l 1 -c -A rar,zip,7z,txt,jpg,iso,sfv,md5,pdf \
--no-parent --restrict-file-names=nocontrol --user=test \
--password=pass --no-check-certificate "$line" -P /mnt/USB/ \
&& sed -i -e '\|'"$line"'|d' "File.txt"; \
done < File.txt
EDIT:
You need to add a \ in front of the first pipe
I believe you just need to use double quotes after sed -e. Instead of:
'...&& sed -e 's|#||g' File'
you would need
'...&& sed -e '"'s|#||g'"' File'
I see what you trying to do, but I dont understand the sed command including pipes. Maybe some fancy format that I dont understand.
Anyway, I think the sed command should look like this...
sed -e 's/#//g'
This command will remove all # from the stream.
I hope this helps!
Here's the command I'm currently running:
curl 'http://test.com/?id=12345' | grep -o -P '(?<=content="2;url=).*?(?=")'
The response from this command is a URL, like this:
$ curl 'http://test.com/?id=12345' | grep -o -P '(?<=content="2;url=).*?(?=")'
http://google.com
I want to use whatever that URL is to essentially do this:
curl 'http://test.com/?id=12345' | grep -o -P '(?<=content="2;url=).*?(?=")' | curl 'http://google.com'
Is there any simple way to do this all in one line?
Use xargs with a place holder for the output from stdin with the -I{} flag as below. The -r flag is to ensure the curl command is not invoked on a empty output from previous grep output.
curl 'http://test.com/?id=12345' | grep -o -P '(?<=content="2;url=).*?(?=")' | xargs -r -I{} curl {}
A small description about the flags, -I and -r from the GNU xargs man page,
-I replace-str
Replace occurrences of replace-str in the initial-arguments with
names read from standard input.
-r, --no-run-if-empty
If the standard input does not contain any nonblanks, do not run
the command. Normally, the command is run once even if there is
no input. This option is a GNU extension
(or) if you are looking for a bash approach without other tools,
curl 'http://test.com/?id=12345' | grep -o -P '(?<=content="2;url=).*?(?=")' | while read line; do [ ! -z "$line" ] && curl "$line"; done
I have bash script and try run command inside it
That's ok
echo ${something:="zip -r -q $TAG -P $PASS $LOCPATH"}
>zip -r -q evolution -P evolution ~/.gconf/apps/evolution
That's ok too
zip -r -q evolution -P evolution ~/.gconf/apps/evolution
But here order have been changed only when passed values and added strange . -i
zip -r -q $TAG -P $PASS $LOCPATH
>zip error: Nothing to do! (try: zip -r -q -P evolution evolution . -i ~/.gconf/apps/evolution
Thanks for any advice.
BASH FAQ entry #50: "I'm trying to put a command in a variable, but the complex cases always fail!"
something=(zip -r -q "$TAG" -P "$PASS" "$LOCPATH")
"${something[#]}"
Try doing type zip, seems it's aliased to something.
Maybe put the full path of zip to override this ,something like :
/usr/bin/zip