Hi,
I'm having some trouble reading a file that was 'cat' through a while loop. Can anyone suggest alternatives? what i do is
cat filename|grep *.stuff
while read line
do
echo $line
... and other commands
done
The cat,grep line seems to work correctly, but the script hangs when i add in... (3 Replies)
Hello,
I have two files that I need to compare and print out the line from file2 that has the first 6 fields matching the first 6 fields in file1. Complicating this are the following restrictions
1. file1 is only a few thousand lines at most and file2 is greater than 2 million
2. I need to... (7 Replies)
File 1
<html>ta da....unique file name I want to give file=>343...</html>
<html>da ta 234 </html>
<html>pa da 542 </html>
and so on...
File 2
343
234
542
and so on, each line in File 1 one also corresponds with each line in File 2
I have tried several grep, sed, while .. read, do,... (4 Replies)
I am using the while-loop to read a file.
The file has lines with null-terminated strings (words, actually.)
What I have by that reading - just a first word up to '\0'!
I need to have whole string up to 'new line' - (LF, 10#10, 16#A)
What I am doing wrong?
#make file 'grb' with... (6 Replies)
i have a file with some data and i need replace a perticular value with some other value from another another file
req:
file1.txt
abc,idle.txt,1234
file2.txt
5678
now the requirement is need to replace the "idle.txt" is with "mike_5678" here 5678 from file2.txt...
file2.txt contains only... (2 Replies)
Good day,
I have a list of regular expressions in file1. For each match in file2, print the containing line and the line after.
file1:
file2:
Output:
I can match a regex and print the line and line after
awk '{lines = $0} /Macrosiphum_rosae/ {print lines ; print lines } '
... (1 Reply)
I have two files.
File 1 is a two-column index file, e.g.
comp11084_c0_seq6:130-468(-) comp12746_c0_seq3:140-478(+)
comp11084_c0_seq3:201-539(-) comp12746_c0_seq2:191-529(+)
File 2 is a sequence file with headers named with the same terms that populate file 1. ... (1 Reply)
Hello,
I need a program that read a file line by line and prints out lines 1, 2 & 3 after an empty line... An example of entries in the file would be:
SRVXPAPI001 ERRO JUN24 07:28:34 1775
REASON= 0000, PROCID= #E506 #1065: TPCIPPR, INDEX= 003F
... (8 Replies)
I have a file
file_name_O.txt
The file can have different number of other files names or nothing
I will check
cnt=`wc -l file_name_0.txt`
if ;then
exit 1
fi
Now I have to start checking file names, i.e. read txt file line by line. If amount of ,lines equal 1, I can... (4 Replies)
GRUB-FSTEST(3) Library Functions Manual GRUB-FSTEST(3)NAME
grub-fstest -- Debug tool for GRUB's filesystem driver.
SYNOPSIS
grub-fstest [-c | --diskcount=NUM] [-C | --crypto]
[-d | --debug=STRING] [-K | --zfs-key=FILE|prompt]
[-n | --length=NUM] [-r | --root=DEVICE_NAME]
[-s | --skip=NUM] [-u | --uncompress] [-v | --verbose]
IMAGE_PATH <blocklist FILE | cat FILE |
cmp FILE LOCAL | cp FILE LOCAL | crc FILE |
hex FILE | ls PATH | xnu_uuid DEVICE>
DESCRIPTION
grub-fstest is a tool for testing GRUB's filesystem drivers. You should not normally need to run this program.
OPTIONS --diskcount=NUM
Specify the number of input files.
--crypto
Mount cryptographic devices.
--debug=STRING
Set debug environment variable.
--zfs-key=FILE|prompt
Load ZFS cryptographic key.
--length=NUM
Handle NUM bytes in output file.
--root=DEVICE_NAME
Set root device.
--skip=NUM
Skip NUM bytes from output file.
--uncompress
Uncompress data.
--verbose
Print verbose messages.
COMMANDS
blocklist FILE
Display block list of FILE.
cat FILE
Display FILE on standard output.
cmp FILE LOCAL
Compare FILE with local file LOCAL.
cp FILE LOCAL
Copy FILE to local file LOCAL.
crc FILE
Display the CRC-32 checksum of FILE.
hex FILE
Display contents of FILE in hexidecimal.
ls PATH
List files at PATH.
xnu_uuid DEVICE
Display the XNU UUID of DEVICE.
SEE ALSO
info grub
Wed Feb 26 2014 GRUB-FSTEST(3)