Either change "else if" to "elif", which is the proper keyword for this, or add another "fi" before "done". Furthermore, "//" is not a comment introducer in bash, replace it with "#"
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)
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)
Hello, first of all I am happy to sign up here.
Next is, I have shell scripts for all the files I want looped infinitely for specific intervals(This is for a wmii config). My question here is how can I run multiple scripts at a 10 second interval for instance? (4 Replies)
I'm trying to search all .odt files in a directory for a string in the text of the file.
I've found a bash script that works, except that it can't handle whitespace in the filenames.
#!/bin/bash
if ; then
echo "Usage: searchodt searchterm"
exit 1
fi
for file in $(ls *.odt); do
... (4 Replies)
Having issues with an expect script. I've been scripting bash, python, etc... for a couple years now, but just started to try and use Expect. Trying to create a script that takes in some arguments, and then for now, just runs a pwd command(for testing, final will be command I pass).
Here is... (0 Replies)
Hi Folks,
I have a loop that goes through an array and the output is funky.
sample:
array=( 19.239.211.30 )
for i in "${array}"
do
echo $i
iperf -c $i -P 10 -x CSV -f b -t 50 | awk 'END{print '$i',$6}' >> $file
done
Output:
19.239.211.30
19.2390.2110.3 8746886
seems that when... (2 Replies)
I have the following while loop that I put in a script, demo.sh:
while read rna; do
aawork=$(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)
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)
Hi everyone
I need some help
I want to create an script which does some processing
it takes the two arguments 201901010000 and 201901020200 - so YYYMMDDHHMM
I want to split processing into hours from start until end,
I dont get why this works but when I add to a future variable... (1 Reply)
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
LEARN ABOUT DEBIAN
wrjpgcom
WRJPGCOM(1) General Commands Manual WRJPGCOM(1)NAME
wrjpgcom - insert text comments into a JPEG file
SYNOPSIS
wrjpgcom [ -replace ] [ -comment text ] [ -cfile name ] [ filename ]
DESCRIPTION
wrjpgcom reads the named JPEG/JFIF file, or the standard input if no file is named, and generates a new JPEG/JFIF file on standard output.
A comment block is added to the file.
The JPEG standard allows "comment" (COM) blocks to occur within a JPEG file. Although the standard doesn't actually define what COM blocks
are for, they are widely used to hold user-supplied text strings. This lets you add annotations, titles, index terms, etc to your JPEG
files, and later retrieve them as text. COM blocks do not interfere with the image stored in the JPEG file. The maximum size of a COM
block is 64K, but you can have as many of them as you like in one JPEG file.
wrjpgcom adds a COM block, containing text you provide, to a JPEG file. Ordinarily, the COM block is added after any existing COM blocks;
but you can delete the old COM blocks if you wish.
OPTIONS
Switch names may be abbreviated, and are not case sensitive.
-replace
Delete any existing COM blocks from the file.
-comment text
Supply text for new COM block on command line.
-cfile name
Read text for new COM block from named file.
If you have only one line of comment text to add, you can provide it on the command line with -comment. The comment text must be sur-
rounded with quotes so that it is treated as a single argument. Longer comments can be read from a text file.
If you give neither -comment nor -cfile, then wrjpgcom will read the comment text from standard input. (In this case an input image file
name MUST be supplied, so that the source JPEG file comes from somewhere else.) You can enter multiple lines, up to 64KB worth. Type an
end-of-file indicator (usually control-D) to terminate the comment text entry.
wrjpgcom will not add a COM block if the provided comment string is empty. Therefore -replace -comment "" can be used to delete all COM
blocks from a file.
EXAMPLES
Add a short comment to in.jpg, producing out.jpg:
wrjpgcom -c "View of my back yard" in.jpg > out.jpg
Attach a long comment previously stored in comment.txt:
wrjpgcom in.jpg < comment.txt > out.jpg
or equivalently
wrjpgcom -cfile comment.txt < in.jpg > out.jpg
SEE ALSO cjpeg(1), djpeg(1), jpegtran(1), rdjpgcom(1)AUTHOR
Independent JPEG Group
15 June 1995 WRJPGCOM(1)